问题 单项选择题

在金属腐蚀过程中,()是控制金属离子化过程的因素,PH值是控制膜稳定性的因素。应用这两个因素,可以将金属与水溶液之间大量的复杂均相和非均相化学反应及电化学反应在给定条件下的复杂关系简明的表示在平面图上。

A、电位

B、电流

C、浓度

D、电阻

答案

参考答案:A

阅读理解

Normal bicycle safety guides usually tell you to wear you helmet(头盔) and to obey the law in order to avoid being hit on a bike. Is this advice really helpful?

Consider this for a moment: Wearing a helmet will absolutely do nothing to prevent you from getting hit by a car. Surely, a helmet might help you if you get hit, but you No.1 goal should be to avoid getting hit. Plenty of cyclists were killed by cars__________. However, if they had ridden without helmets, yet followed the guidelines listed below, they might still be alive today. So they saying that wearing a helmet is the first and last word in bike safety is, to some degree(在一定程度上), wrong.

The most common bike safety advice is “follow the law”. Ridiculously, most people are already aware that it’s stupid to race through a red light at a crossroads. As a result, it’s clear that the “follow the law” advice isn’t that helpful, either. In addition, following the law is not enough to keep you safe. Here’s an example: The law tells you to ride on the right, but if you ride too far to the right, someone started a parked car could open their door right in front of you and motorists pulling out of driveways and parking lots will be less visible. In that case you were following the law, but could still have been hit.

Then what should we remember in order to keep safe when riding a bike? I will tell you about it in the following paragraph.

小题1:What does the author say about wearing a helmet in the second paragraph?(within 8 words)

_________________________________________________________________________________________

小题2:Which sentence in the passage is the closest in meaning to the following one?

However, nearly everyone knows that riding through hared traffic light is dangerous.

_________________________________________________________________________________________

小题3:Please fill in the blank in the second paragraph with proper words or phrases to complete the sentence.(within 5 words)

_________________________________________________________________________________________

小题4: List the two regular bike safety guides.(within 8words)

_______________________________________②_______________________________________

小题5:Translate the underlined sentence in the third paragraph into Chinese.

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单项选择题