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【简答题】
阅读理解。 Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big, and they can eat small animals. One famous meat-eating plant is the Venus flytrap (捕蝇草). The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly. Why do plants do it? Most plants get what they need from the sun, the air and the ground. In some places, the ground is very poor. It doesn't have all these important things, especially nitrogen (氮). Animal meat has a lot of nitrogen, so some plants eat meat to get what they need. Let's hope that some of the bigger plants don't get the same idea! 1. The Venus flytrap is a kind of . [     ] A. plant B. animal C. food D. drink 2. The Venus flytrap grows in . [     ] A. most parts of the world B. some parts of Africa C. dry parts of the United States D. Asia 3. From the passage, we learn that . [     ] A. all plants can eat people B. all plants can eat animals C. some plants Can eat animals D. some plants don't eat anything 4. The underlined word 'presses' probably means in Chinese. [     ] A. 挤压 B. 关上 C. 打开 D. 调高 5. Why do some plants eat animal meat? Because . [     ] A. plants are dangerous (危险) to animals B. animals are dangerous to plants C. plants want to get what they need from animal meat D. plants get some water
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举一反三
【单选题】通常红外光谱仪扫描的范围是:( )
A.
近红外区
B.
中红外区
C.
远红外区
D.
整个红外区
【简答题】红外光谱仪所用光源通常是一种惰性固体,用电加热使之发射高强度的连续红外辐射,常用红外光谱仪光源有_________和_______。
【单选题】通过长圆筒壁导热时,圆筒壁内的温度呈 分布规律
A.
对数曲线
B.
直线
C.
双曲线
D.
抛物线
【单选题】通常用来表示红外光谱法的是
A.
HPLC
B.
GC
C.
IR
D.
TLC
E.
NMR
【单选题】红外光谱室通常需要安装除湿装置,其主要原因是
A.
消除空气中过量水分的影响,因为红外必须预先扣除水和二氧化碳的背景影响
B.
保护仪器,避免设备锈蚀
C.
保护样品不被潮解
D.
保护压片时的成型,避免其容易碎裂
【单选题】热疗的目的不包括
A.
促进炎症的的消散或局限
B.
减轻深部组织充血
C.
缓解疼痛
D.
减慢炎症扩散或化脓
E.
保暖
【单选题】莎士比亚创作的以英国历史为题材的历史剧中,反映年代最久远的是
A.
《亨利八世》
B.
《理查三世》
C.
《李尔王》
D.
《约翰王》
【单选题】红外光谱通常是指
A.
远红外区
B.
整个红外区
C.
近红外区
D.
中红外区
【判断题】红外光谱通常所指的是中红外光谱。 ( )
A.
正确
B.
错误
【判断题】红外光谱通常所指的是中红外光谱。 ()
A.
正确
B.
错误
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