Lembaran formula, langkah kaedah utama untuk setiap topik dan 16 soalan latihan, dengan penyelesaian penuh di bahagian belakang.
“The nurse spoke softly, held the boy’s hand and explained each step before she gave the injection.” Which word best describes the nurse’s manner?
“Kim read the email twice, set her phone down and stared out of the window. Then she picked up the phone again and began to type a long reply, deleting each sentence before she finished it.” What is Kim most likely feeling?
Sepasang kasut berharga $37.99. Ia dijual dengan diskaun 30%, dan cukai jualan 7% ditambah pada harga jualan. Berapakah harga akhir P? Bundarkan kepada sen terdekat.
Hasil tambah 2 integer berturutan ialah 41. Apakah yang terbesar antaranya, x?
Manset rotator terdiri daripada supraspinatus, infraspinatus, teres minor dan otot yang satu lagi iaitu?
Mengapakah kutub proksimal skafoid berisiko mengalami nekrosis avaskular selepas patah di bahagian pinggang?
Menurut hukum Poiseuille, jika jejari arteriol menjadi separuh, rintangannya terhadap aliran:
Gas darah arteri pesakit menunjukkan pH 7.30, PaCO₂ 7.8 kPa (59 mmHg) dan bikarbonat normal. Apakah gangguan yang paling mungkin?
Why are stains such as iodine or methylene blue added to cells on a microscope slide?
In snapdragons, flower colour shows incomplete dominance: RR is red, RW is pink and WW is white. Two pink plants are crossed. What phenotype ratio is expected?
What is carbon-14 dating used for?
Pepsin digests protein in the stomach at about pH 2, but it stops working once food moves into the small intestine, where the pH is higher. Why?
Choose the correct verb: “Every nurse and doctor ___ a badge.”
Which choice correctly reports the speech? She said, “I am tired.”
Choose the meaning of the word in bold: “Use the appropriate size of cuff when measuring blood pressure.”
Choose the meaning of the word in bold: “Hand hygiene is imperative before every patient contact.”
Jawapan: C · Gentle
Speaking softly, holding his hand and explaining each step show a gentle, caring approach. Nothing suggests she was hurried or strict.
Jawapan: C · Unsure how to respond
Rereading, pausing and repeatedly deleting her reply suggest that she does not know what to say. Nothing suggests boredom or delight.
Jawapan: P = 28.45 $
Diskaun dan cukai jualan: diskaun d% meninggalkan (100 − d)% daripada harga; cukai t% menambah t% daripada harga selepas diskaun. Kerjakan mengikut urutan itu: harga × (1 − d/100), kemudian × (1 + t/100). Bundarkan wang kepada sen terdekat hanya pada akhirnya.
Jawapan: x = 21
Soalan perkataan: namakan nilai yang tidak diketahui (contohnya x = bilangan bulan), tulis fakta sebagai satu persamaan, selesaikannya, dan semak bahawa jawapan masuk akal dalam cerita itu. Yuran tetap ditambah kadar bagi setiap unit memberikan jumlah = yuran + kadar × unit.
Jawapan: A · Subskapularis
SITS: supraspinatus, infraspinatus, teres minor dan subskapularis. Teres major terletak berdekatan tetapi bukan sebahagian daripada manset itu.
Jawapan: B · Bekalan darahnya terutamanya masuk dari hujung distal
Cabang arteri radial memasuki skafoid terutamanya di bahagian distal dan mengalir ke belakang. Patah melalui bahagian pinggang boleh memutuskan bekalan kutub proksimal, menyebabkan nekrosis avaskular.
Jawapan: B · Meningkat kira-kira 16 kali ganda
Rintangan berkadar dengan 1/r⁴, maka mengurangkan jejari separuh menaikkan rintangan sebanyak 2⁴ = 16. Inilah sebabnya perubahan kecil pada garis pusat arteriol mengawal aliran darah dengan begitu kuat.
Jawapan: A · Asidosis respiratori akut
pH rendah dengan CO₂ tinggi menunjukkan asidosis respiratori. Bikarbonat belum meningkat, maka buah pinggang belum mengimbangi: ia akut.
Jawapan: B · To make structures easier to see
Most cell parts are colourless, so stains are used to add contrast. Iodine stains starch and nuclei in plant cells, and methylene blue stains the nuclei of animal cells.
Jawapan: C · 1 red : 2 pink : 1 white
RW × RW gives 1 RR : 2 RW : 1 WW. Because heterozygotes are pink, the phenotype ratio is the same as the genotype ratio: 1 red : 2 pink : 1 white.
Jawapan: C · Estimating the age of material that was once alive
Living organisms take in carbon-14 while alive. After death it decays with a half-life of about 5700 years, so the remaining carbon-14 shows roughly how long ago the organism died. It is not useful for very old rocks.
Jawapan: B · The change in pH alters the shape of pepsin's active site
Enzymes work best at an optimum pH. Away from it, changes in charge on the enzyme disturb the bonds holding its shape, so the active site no longer fits the substrate.
Jawapan: A · wears
When “each” or “every” comes before a compound subject joined by “and”, the subject is treated as singular and takes a singular verb.
Jawapan: D · She said that she was tired.
In reported speech, “I” becomes “she” and the present tense usually shifts back to the past after “said”.
Jawapan: B · Suitable
Appropriate means suitable or right for the situation.
Jawapan: C · Absolutely necessary
Imperative means extremely important or essential.
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