下列说法正确的是[ ] A、食盐水溶液和蔗糖水溶液都能导电 B、氧原子的相对原子

题型:不定项选择题

问题:

下列说法正确的是[ ]

A、食盐水溶液和蔗糖水溶液都能导电

B、氧原子的相对原子质量是16g

C、一瓶合格的生理盐水(氯化钠注射液)密封放置一段时间后,会出现浑浊现象

D、若一个碳12原子的质量是akg,一个铁原子的质量是bkg,则铁的相对原子质量为12b/a

考点:溶液的定义、组成及特征相对原子质量
题型:不定项选择题

Mr. Robinson had to travel somewhere on business and as he was in a hurry, he decided to go by air. He liked to sit beside a window when he was flying. So, when he got on to the plane, he looked for a window seat. He found all of them had already been taken except one. There was a soldier sitting in the seat beside this one and Mr. Robinson was happy that he had not taken the one by the window; but, anyhow, he at once went towards it. When he reached it, however, he saw there was a notice on it. It was written in ink and said “This seat is reserved for proper load balance. Thank you.” Mr. Robinson had never seen such a notice in a plane before, but he thought that the plane must be carrying something heavy in its baggage room which made it necessary to have the passengers properly balanced, so he walked on and found another empty seat, not beside a window, to sit in. Then, when the plane was quite full, a very beautiful girl stepped into the plane. The soldier quickly took the notice off the seat beside him and in this way succeeded in having the girl beside him during the whole trip.

小题1:When he got on the plane he was happy to find that _______.

A.a notice was put in a window seat

B.some of the seats were not occupied

C.there was a seat that he had hoped to have

D.the plane was not very crowded小题2:Which of the following is TRUE according to the passage?

A.Mr. Robinson was the last passenger to get on board the plane.

B.Mr. Robinson was surprised to see the notice in the seat.

C.The window seats were all occupied when Mr. Robinson got on hoard the plane.

D.The plane Mr. Robinson took was heavily loaded with luggage.小题3:In the end Mr. Robinson found out that _________.

A.the notice was put on the seat by the soldier.

B.the solider was waiting for his girl friend

C.the girl was the last passenger who got on the plane.

D.the seat by the window was kept for the last passenger.小题4:This short passage may be taken from a _____.

A.novel

B.news report

C.science fiction

D.magazine.

题型:不定项选择题

气血并调方是

A.阿胶
B.生地黄
C.桂枝、生姜
D.麦冬、麻仁
E.炙甘草、人参、大枣

题型:不定项选择题

政治权力是一种支配力量,掌握了政治权力,也就掌握了社会的支配力量。掌握了社会的支配力量,也就意味着在社会()分配中处于优势地位。

题型:不定项选择题

响应支持是指供方对()

A.备品备件的响应交付

B.应急事件的保障服务

C.日常预订服务的交付

D.故障申报的即时服务

题型:不定项选择题

触电者无心跳而需进行胸外挤压抢救法,每分钟挤压次数为()次。

A、100

B、80

C、30

D、12

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