把载玻片上的字母“q”放在10×10的显微镜下观察到的物象和放在1

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问题选择题

把载玻片上的字母“q”放在10×10的显微镜下观察到的物象和放在10×40的显微镜下看到的物象分别是（　　）

A．b与b

B．b与d

C．b与P

D．b与q

答案

显微镜成倒立的像．“倒立”不是相反，是旋转180度后得到的像．即上下相反、左右相反．“q”旋转180度后得到的是“b”．

故选A．

阅读理解

阅读理解。

Jim is a five-year-old boy. He likes watermelons very much. It is very hot and he is thirsty now.

so he goes to the supermarket. He says to the salesman,“How much is this watermelon

“Ten yuan.," says the salesman.

“Wow, that's too expensive! "Jim says,

“You can buy half of it for six yuan.," the salesman says.

“OK. I'll take the other half for four yuan, "Jim says.

阅读短文，判断下列句子正(T)误(F)。

( )1. Jim is five years old.

( )2. In the story, Jim is hungry.

( )3. Jim goes to the supermarket.

( )4. The half of the watermelon is ten yuan.

( )5. Jim wants to take the other half for three yuan.

单项选择题

肝外胆道解剖特点中，下述哪项错误（）。

A.胆囊动脉常有变异

B.胆囊管常有变异

C.胆总管末端多与主胰管汇合

D.胆囊分为颈、体、底三部分

E.Oddi括约肌由胆胰管壶腹部括约肌组成