皮皮学,免费搜题
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【单选题】
下列关于蛋白质的叙述中,正确的是
A.
蛋白质溶液里加(NH 4 ) 2 SO 4 溶液并不可提纯蛋白质。
B.
在豆浆中加少量石膏,能使豆浆凝结为豆腐。
C.
温度越高,酶对某些化学反应的催化效率越高。
D.
任何结构的蛋白质遇到浓HNO 3 都会变为黄色。
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【单选题】In the marriage union, the independence of the husband and wife will be equal, their dependence mutual, and their ______ reciprocal.
A.
payment
B.
obligation
C.
option
D.
penalty
【单选题】社会意识的本质特点在于
A.
它是社会存在的反映,具有相对对立性
B.
它是全社会人的共同意识
C.
它具有鲜明的阶级性
D.
它是独立于社会存在之的精神实体
【简答题】Magnetic resonance imaging (MRI) is a ______________ medical test that physicians use to diagnose medical conditions.
【单选题】Math.floor(Math.PI)的结果是:
A.
3
B.
4
C.
3.0
D.
4.0
【单选题】The livelihood of each species in the vast and intricate assemblage of living things depends on the existence of other organisms. This interdependence is sometimes subtle, sometimes obvious. Perhaps t...
A.
How parasites reproduce.
B.
How organisms react to invaders.
C.
How antibiotics work to cure disease.
D.
How the immune system of vertebrates developed.
【多选题】下列选项中,计算结果为3的表达式是(__)。
A.
Math.round(Math.PI)
B.
Math.floor(Math.PI)
C.
Math.ceil(Math.PI)
D.
Math.PI.toFixed(0)
【单选题】下列影像学方法哪个对人体损伤最小Which of the following medical imaging methods is the least harmful to humans?
A.
普通 x 线摄影 Radiography
B.
CT
C.
DSA
D.
核医学
E.
MRI
【简答题】Magnetic resonance imaging (MRI) of the head uses a powerful 1) _________________, 2) _________________and a computer to produce detailed pictures of the brain and other cranial structures that are cl...
【单选题】下列选项中可以保留2位小数的是( )。
A.
Math.PI.toFixed(2)
B.
Math.ceil(Math.PI)
C.
Math.floor(Math.PI)
D.
Math.round(Math.PI)
【简答题】社会意识的本质特点在于A. 社会意识是对社会存在的反映,具有相对独立性
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