Lembaran formula, langkah kaedah utama untuk setiap topik dan 16 soalan latihan, dengan penyelesaian penuh di bahagian belakang.
“Marco checked the weather report three times, packed an extra jacket and put an umbrella by the door the night before the school trip.” What can you infer about Marco?
“In the early 1900s, many cities added chlorine to drinking water. Over the following decades, deaths from diseases spread by water, such as typhoid, fell sharply.” Which conclusion is most reasonable?
Hitung 1 1/2 + 4/5. Klik jawapan dalam bentuk termudah.
Dalam sesuatu kursus, kerja rumah dikira 20%, peperiksaan pertengahan 30% dan peperiksaan akhir 50% daripada gred. Seorang pelajar mendapat 73% dalam kerja rumah, 74% dalam peperiksaan pertengahan dan 85% dalam peperiksaan akhir. Berapakah gred kursus G? Bundarkan kepada satu tempat perpuluhan.
Nadi manakah yang dirasa tepat di belakang malleolus medial buku lali?
Apakah susunan struktur yang betul yang dilalui air kencing selepas meninggalkan duktus pengumpul?
Apakah ruang mati anatomi?
Kajian klasik Hodgkin dan Huxley tentang asas ion potensi tindakan menggunakan sediaan yang mana?
Why do root hair cells have long, thin extensions?
A bag made of membrane that lets only water through contains a 10% sugar solution. It is placed in a beaker of 5% sugar solution. What happens?
Apakah jenis tindak balas AgNO₃ + NaCl → AgCl + NaNO₃?
A reaction at equilibrium has a very large equilibrium constant (K much greater than 1). What does this tell you?
Which title should be placed in quotation marks rather than italicised?
What is the mood of the verb in this sentence? “Take two tablets with water.”
Choose the meaning of the word in bold: “Place the patient in the supine position.”
Choose the meaning of the word in bold: “The patient with type 1 diabetes needs exogenous insulin.”
Jawapan: C · He expects bad weather and likes to be prepared.
Checking the forecast and packing rain gear show that he expects poor weather and plans ahead. Nothing suggests he dislikes the trip.
Jawapan: C · Chlorination likely helped reduce waterborne disease.
The timing suggests chlorination helped reduce waterborne illness. Saying it was the only reason goes too far, since other improvements happened too.
Jawapan: 2 3/10
Menambah dan menolak pecahan: penyebut mestilah sama. Cari penyebut sepunya terkecil (LCD), tulis semula setiap pecahan dengannya dengan mendarab atas dan bawah dengan nombor yang sama, kemudian tambah atau tolak pengangka sahaja. Permudahkan dengan membahagi atas dan bawah dengan faktor sepunya terbesarnya, dan tulis pecahan tak wajar sebagai nombor bercampur.
Gandaan sepunya terkecil bagi 2 dan 5 ialah 10.
Jawapan: G = 79.3 %
Purata berwajaran: apabila bahagian dikira dengan peratusan yang berbeza, darabkan setiap skor dengan pemberatnya (sebagai perpuluhan) dan tambahkan. Min biasa bagi skor hanya betul apabila setiap bahagian dikira sama rata.
Jawapan: C · Arteri tibial posterior
Arteri tibial posterior melalui belakang malleolus medial ke dalam tapak kaki. Nadi dorsalis pedis dirasa di bahagian atas kaki.
Jawapan: B · Kaliks minor, kaliks major, pelvis renal, ureter
Duktus pengumpul terbuka pada papila renal ke dalam kaliks minor, yang bercantum membentuk kaliks major, kemudian mengalir ke pelvis renal dan seterusnya ureter.
Jawapan: C · Isi padu saluran pengaliran tempat tiada pertukaran gas berlaku
Ruang mati anatomi (kira-kira 150 ml) ialah udara dalam hidung, trakea dan bronkus. Ia digerakkan dengan setiap hembusan tetapi tidak pernah sampai ke alveoli.
Jawapan: B · Akson gergasi sotong
Akson gergasi sotong selebar sehingga kira-kira 1 mm, maka elektrod pengapit voltan boleh dimasukkan. Ini menunjukkan bahawa aliran masuk natrium dan aliran keluar kalium menghasilkan potensi tindakan.
Jawapan: C · To increase the surface area for absorbing water
The long extension of a root hair greatly increases the surface area in contact with soil water, so the root can absorb water by osmosis and minerals by active transport more efficiently.
Jawapan: A · Water moves into the bag, and the bag gains mass
The bag is hypertonic to the beaker, so water enters the bag by osmosis and its mass increases. Sugar cannot move because the membrane is impermeable to it.
Jawapan: D · Penggantian ganda dua
Kation dan anion bertukar pasangan: AB + CD → AD + CB. Di sini AgCl yang tak larut membentuk mendakan.
Jawapan: D · At equilibrium, the mixture contains mostly products
K compares product concentrations to reactant concentrations at equilibrium. A very large K means products dominate. K says nothing about how fast equilibrium is reached.
Jawapan: D · A short poem
Titles of short works such as poems, articles, songs and chapters go in quotation marks. Long works such as books, newspapers and films are italicised.
Jawapan: D · Imperative
The imperative mood gives commands or instructions. The indicative states facts, and the subjunctive expresses wishes or conditions contrary to fact.
Jawapan: B · Lying flat on the back, face up
Supine means lying on the back with the face upward.
Jawapan: D · Coming from outside the body
Exogenous means originating outside the body; endogenous means produced inside it.
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