园林赏析：《法国凡尔赛宫》

生物的一生需要不断从外界获得_________物质，维持生存。

句型转换。

1. May I smoke here? (否定回答)

    No,                        .

2. Look! There is some milk in the glass. (改为否定句)

    Look! There                        milk in the glass.

3. This bag is made of leather. (提问) 

                this bag                         ?

4. How do you like the film? (同义句) 

                do you                          the film?

5. It's not polite of you to come in. You don't knock on the door. (合并为一句)

    It's not polite of you to come in                          on the door.

6. My mother watches two hours of TV every night. (提问) 

                                          does your mother watch every night?

7. How beautiful the flowers are! (同义句) 

                                           they are!

8. Daniel runs on the playground every morning. (用now改写)

    Daniel                          on the playground now.

有关正锐波，下列哪项叙述是对的（）

A.正锐波是自发出现或紧接在针刺后出现的三相电位

B.由2个部分组成：起初为一锐性的负向偏转，随后为一低振幅、长时限的正相

C.正锐波的振幅从50mV到10mV不等

D.其时限常超过100ms

E.正锐波在失神经肌肉常可单独见到或与纤颤波伴随出现

下列关于我国现在外汇管理的原则说法正确的有（）。

A．国家对外债实行规模管理

B．人民币汇率实行以市场供求为基础的、有管理的浮动汇率制度

C．国家对经常性国际支付和转移不予限制

D．外汇管理机关对金融机构外汇业务实行综合头寸管理

人耳对( )的感觉最灵敏，对( )的感觉次之。

A．强度；频率

B．频率；强度

C．间断音；连续音

D．连续音；间断音