铂钴比色法结果的表示以色度的（）报告与试料（），在0

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问题填空题

铂钴比色法结果的表示以色度的（）报告与试料（），在0－40度的范围内，准确到（）。40－70度范围内，准确到（）。

答案

参考答案：标准单位；最接近的标准溶液的值；5度；10度

阅读理解

阅读理解。

It's 4: 30 in the afternoon. The students in Class Two are in the classroom. Li Lei and Tom take off their

coats and put them on the chair. They put their bags in their desks. It's time to play games. Li Lei says," Excuse

me, Han Mei. Can you look after (照顾) my coat and bag? " " Sorry! I must go home ".

判断对错。对的打“√”，错的打“×”。

( ) 1. It's 4: 30 in the afternoon. The students aren't in the classroom.

( ) 2. Li Lei and Tom put their coats on the chair.

( ) 3. They put their bags on their desks.

( ) 4. Li Lei and Tom want to play games.

( ) 5. Han Mei wants to go home.

单项选择题

副交感神经的作用是

A．瞳孔扩大

B．胃肠道活动减弱

C．逼尿肌收缩

D．骨骼肌血管舒张

E．气道阻力减小