先导化合物的来源有四种来源

“Why does the chicken cross the road? To get to the other side!”

That’s an old joke in the west, but it came to my mind again when I saw people crossing the road at the intersection of Shanxi Road and Huaihai Road in Shanghai.

When the traffic light was red, a group of people were waiting for the light to change. Suddenly one man began rushing to the other side of the road. Soon others followed him at the crossing and more people did the same. Just like chickens, they didn’t mind the honking horns(喇叭声) and kept crossing the road in a mess.

Every year several thousand people are either killed or hurt on the roads in Shanghai. And at least one third of them were jaywalking(乱穿马路). Jaywalking is very common in Shanghai. It seems that jaywalkers are not afraid of the danger to themselves.

Traffic laws are to keep people safe. So we should obey them, and have good road-crossing habits. When someone starts to jaywalk, we should stop him, and never follow him. That way we can avoid the traffic accidents.

小题1:The underlined word “intersection” here probably means “       ”.

A．road

B．bridge

C．crossing

D．traffic小题2:The writer saw people      in Shanghai that day.

A．crossing the road in a mess

B．waiting for the green light patiently

C．crossing the road with chickens

D．hurting each other in the street小题3:How does the writer like what he saw in Shanghai that day?

A．He thinks it’s OK.

B．He thinks it’s wrong.

C．He has no idea of it.

D．He doesn’t mention it

IPv4 版本的因特网总共有______个 A 类地址网络。

A．65000

B．200 万

C．126

D．128

半规管壶腹嵴的适宜刺激是（）

A.直线加速运动

B.直线减速运动

C.直线变速运动

D.旋转变速运动

E.旋转匀速运动

男，36岁。平素性格内向，近日情志不遂，精神抑郁，情绪不宁，善太息，胸胁胀痛，痛无定处，脘闷嗳气，腹胀纳呆，大便时软时干，苔薄腻，脉弦。辨证属何证（）

A.肝气郁结

B.气郁化火

C.气滞痰郁

D.心脾两虚

E.忧郁伤神

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