患者呕吐多为清水痰涎，脘闷不食，头晕心悸，舌苔白腻，脉滑。其证候为：（） A．饮食积

单词拼写(根据句意、首字母或中文提示用正确形式写出下列单词,

每空一词.提示:必须用必修五、选修六所学新单词.

1.His report was c__________(不断地) interrupted by applause.

2. Can you telephone me at your c_________ to arrange a meeting?

3. Destruction of the environment is one of the most serious ____________(挑战) we face.

4. Her father didn't a_____________ of her marriage to him, which made her very sad.

5. The teacher and his students are d_________ (高兴的)with the result of the experiment.

6. After some repeated a________, they finally succeeded in winning the competition.

7. Is now an a_________(适当的)time to call on Professor Simpson? ?

8. The washing machine is fully __________. (自动的)

9. The monitor gave a present to their headmaster on b_________ of all the students.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           10. He was a_____________ as captain of the English team.

有关地球外部圈层的说法，正确的是

A．大气圈是由大气组成的简单的系统

B．水圈是一个连续不规则的圈层

C．生物圈包括大气圈的全部、水圈的全部

D．地球的外部圈层之间关系密切，但和地球的内部圈层没有关系

马克思曾引证过的英国古典政治经济学家威廉·配第观点认为，“劳动是财富之父，土地是财富之母”，这表明 ( )

A．使用价值的源泉有两个：自然物质和人的劳动

B．抽象劳动是使用价值的惟一源泉

C．自然物质是使用价值的惟一源泉

D．雇佣工人的劳动是使用价值的惟一源泉

拆卸时，选用工具要恰当，其（）应适合需要.

A.种类与规格

B.种类与精度

C.规格与精度

D.种类与精度

用单纯形法求解线性规划问题时，判断当前解是否为最优解的标准为所有非基变量的检验数应为（）。

A.正

B.负

C.非正

D.非负