我国公务员考核的重点是( )A．德 B．能 C．勤 D．绩

In my view, biology is ______ chemistry, but a little easier than mathematics.

A．a subject so difficult as

B．as difficult a subject as

C．as a difficult subject as

D．difficult as a subject as

All the club members _____ the floor when they heard someone _____ for help.[ ]

A. swept; were shouting

B. swept; shouted

C. were sweeping; shouting

D. were sweeping; shouted

下列说法正确的是

A．百米运动员冲刺后，由于惯性的作用不会立即停下来

B．跳远运动员助跑起跳，是利用了惯性

C．踢出去的足球在地上越滚越慢，说明物体的运动需要力来维持

D．物体不受力的作用，运动状态就一定不改变

有关肝性脑病的氨中毒学说下列哪项正确（）

A.血氨主要来自肾脏和骨骼肌

B.肠道氨主要以NH₄⁺形式吸收

C.尿素在肾脏中经鸟氨酸代谢循环合成

D.血氨不从肺排出

E.消化道出血可致内源性血氨升高

凯登认为，腐败堕落的罪魁祸首是( )

A．物质贫乏
B．党派利益
C．意识形态
D．行政体制