问题 单项选择题 A型题

以下所列“与水溶性注射液配伍时常由于溶解度改变而析出沉淀”的药物中,最可能的是()

A.葡萄糖

B.乳酸钠

C.氯化钠

D.氯化钾

E.氢化可的松

答案

参考答案:E

解析:

有机溶媒或增溶剂制成不溶性注射液(如氢化可的松),与水溶性注射剂配伍时,常由于溶解度改变而析出沉淀。该类物质还有氯霉素、维生素K1、地西洋等。

阅读理解

A driver stopped his car on a street side to have a rest. As he lay down in the seat and closed his eyes, a person came up and knocked at the window to ask the time. The driver opened his eyes and looked at his watch: “It’s 8: 05,” he said. Then he went to sleep again. But soon he was waken up again because a second person was knocking at the window. “Sir, do you know the time?” he asked. The driver looked at his watch again, and told him it was half past eight.

In this way, the driver thought he could not have a good rest, so he wrote a short note and stuck it on the window for all to see. It said, “I don’t know the time.”

Again, he lay down in the seat for his sleep. A few minutes later, a third person came and began to knock at the window, “Hey, sir,” he said. “It’s a quarter to nine.”

56. Where did the driver sleep?

A. At the window.   B. In the street road.   C. In his car.     D. In his room.

57. How long had the driver been there when the third person called him?

A. 40 minutes. B. 25 minutes. C. 50 minutes. D. 70 minutes.

58. Why did the driver write a note and stick it on the window?

A. Because he didn’t know the time.

B. Because he didn’t want anybody to trouble him.

C. Because he needed somebody to wake him up.

D. Because he wanted somebody to tell him the time.

59. The third person knocked at the window to ______.

A. ask him the time                    B. ask him not to sleep

C. see if the driver was sleeping     D. tell him what time it was

60. The driver ______ in his car.

A. had a good sleep B. had no seat

C. didn’t have a good rest        D. always closed his eyes

单项选择题