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问题 单项选择题

模拟移动床中L2′/A表示（）。

A、吸附塔区Ⅱ区、净区域流量

B、解吸区有效区域流量与有效吸附容量上升速率之比

C、精馏区净区域流量与有效吸附容量上升速率之比

D、缓冲区有效区域流量与有效吸附剂容量上升速率之比

答案

参考答案：C

阅读理解

  There are many ways to keep healthy. Different people have different ways. Lisa's father thinks riding a bike is the best way because he likes to go to work by bike. And their home isn't far from his bank. Lisa thinks running is better than riding, so she runs every day. However, her mother thinks it's boring. She loves walking to work. Lisa's sister likes flying kites. She goes to fly kites once a week. Lisa's brother thinks playing ping-pong is a good way to keep healthy. He plays it every morning.

小题1: _____ likes riding a bike to work.

A．Lisa's mother

B．Lisa's father

C．Lisa's brother

D．Lisa's sister小题2: Lisa's father works in a _____

A．bank

B．school

C．police station

D．store小题3:Lisa's sister likes______

A．fishing

B．flying kites

C．swimming

D．playing basketball小题4:Lisa runs_______

A. once a week   B. every week      C every day     D. three times a day

小题5:The best title(题目 ) is______.

A Different Ways to Keep Healthy    

B. Different People, Different Likes

C. How to Eat Healthily             

D. How Often do You Exercise
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单项选择题

使子宫肌纤维松弛并使妊娠子宫对缩宫素敏感性降低的激素是

A．人绒毛膜促性腺激素
B．人胎盘生乳素
C．雌激素
D．孕激素
E．前列腺素
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