服用时应避免接触牙齿的药物是 A．氯化铵合剂 B．硫酸亚铁糖浆_爱下问搜题

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问题单项选择题

服用时应避免接触牙齿的药物是

A．氯化铵合剂
B．硫酸亚铁糖浆
C．普萘洛尔
D．山楂丸
E．阿司匹林

答案

参考答案：B

完形填空

完型填空。从题后所给的A.B.C.D四个选项中选出符合题意的最佳选项。
Long ago there was a poor farmer in Russia. He had been very 1__ with everything he had. However, when he found his elder brother was __2__ than him, he felt disappointed. So he 3__ hard about how he could also be richer. Finally he got an idea. He started to spend less money on food and clothes to __4___ some money to buy more land. Once he had enough money, he started __5_for land.
He6__ that on the neighboring land, there were some nomads living there. He bought some gifts and went to ___7_ their head. He presented the gifts to the head and told him the 8__ of his visit. The head welcomed him, accepted the gifts and agreed to his 9_ to get the land. The head told him that he could have the land _10__ giving him anything. He can take as much land as he could _11 by walking through the land before sunset. He should start in the morning and whatever distance he could travel during the 12_____, he could have it.
The farmer became very 13___when he heard this offer. Now he could have lots of _14__ without paying anything. He came __15 the next morning and started running, not walking, 16_ he could cover the largest area. To reach his goal, he neither ate food, nor drank water, nor had any rest. He just continued___17_. Without eating, or drinking, or resting he just got very 18__.When he came back to the head in the evening, he 19__ right on the spot. Sadly his son buried him in a piece of land about 6×4feet.
Don’t be greedy or you will __20 everything finally.

单项选择题

用挂重法校电动靶式流量计，靶上不挂砝码时，仪表输出应为（）。

A.4mA

B.20mA

C.12mA

D.8mA