问题
单项选择题
自动生化分析仪常用的信号检测器是
A．硒光电池
B．矩阵硅二级管
C．光电管
D．蓄电池
E．固体闪烁计数仪
答案
参考答案：B
解析：自动生化分析仪常用的信号检测器是一矩阵硅二级管。
搜题请搜索小程序“爱下问搜题”
自动生化分析仪常用的信号检测器是
A．硒光电池
B．矩阵硅二级管
C．光电管
D．蓄电池
E．固体闪烁计数仪
参考答案：B
解析：自动生化分析仪常用的信号检测器是一矩阵硅二级管。
阅读短文，然后选择能使短文意义完整的正确选项。 Mr. Brown is 75 years old. He lives with his daughter’s family. Every morning he goes to in the park. And at twelve thirty he home for lunch. But today a car stops at his house at twelve. Two policemen(警察) help him get out. One of says to Mr. Brown’s daughter, “The old man can’t find his in the park. He calls us to take him to in our car.” The daughter the policemen and the policemen leaves(离去). Then she asks her , “You go to that park to walk every day and you lose your way. But today, you can’t find the way. What’s wrong with you?” “I can find my way. I just don’t to walk home today,” the old man says and smiles (笑) like a child.
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