胃大部切除术后发生倾倒综合征的原因是（） A.食物由残胃排空过快 B.胰岛素浓度不足

阅读理解。根据要求完成下列各题。

        Mars is the fourth planet from the sun and is commonly known as the Red Planets. The rocks, soil and sky

of it are a little red or pink. Its name was given by the Romans in honor of their god of war.

        People on the earth need oxygen to breathe. There is almost no oxygen on Mars. Living on Mars would be

like living on a very high mountain. There would be little air. It might be 50 degrees above zero at noon and 100

degrees below zero at night. We know that Mars has carbon. Through a telescope, Mars looks red. In some

places, it seems gray. At times the gray turns gray-green, then brown, then gray again. The gray-green may be

a kind of plant color which changes with the seasons.

        Life is expected on Mars by scientists, because there are distinct seasons on the planet's surface. This

condition might support plants. However, some researches find if Mars had life, it must have been a long time

ago. For Mars' first 600 millions years, it had plenty of water and proper temperatures for life. But now the

planet's environment has changed. Mars is not a pleasant place for any form of life.

1. 根据解释，在短文中找出相应的单词或短语。

    ______: famous        ______: sometimes

2. Its name was given by the Romans in honor of their god of war.

(改为主动语态的句子) __________________________________________________________________

3. Why is life expected on Mars by scientists?

(回答问题) __________________________________________________________________

4. There is almost no oxygen on Mars.

(改为反意疑问句) There is almost no oxygen on Mars, _____ _____?

5. But now the planet's environment has changed. Mars is not a pleasant place for any form of life.

(翻译成汉语) __________________________________________________________________

笔算180÷26时，可以把26看作______去试商，也可以把26看作______去试商．

采购流程包括：①确认供应商的支付发票；②选择供应商；③签发采购订单；④采购申请；⑤价格谈判；⑥跟踪订单；⑦接收货物。其顺序为（）。

A.③⑥④②⑤⑦①

B.⑤③⑥④②⑦①

C.⑦①④②⑤③⑥

D.④②⑤③⑥⑦①

如图所示，竖直放置的长直导线通以图示方向的电流，有一矩形金属线框abcd与导线在同一平面内，下列情况，矩形线框中不会产生感应电流的是

A．导线中电流变大

B．线框向右平动

C．线框向下平动

D．线框以ab边为轴转动

股票交易是以股票或认股权证为对象进行的流通转让活动。( )