搜题请搜索小程序“爱下问搜题”
问题 判断题

当光线过亮时，用反光镜的凹面来对光。                                           （   ）

答案

错

题目分析：显微镜视野亮度的调节：光线强时，用小光圈、平面镜调节；光线弱时，用大光圈、凹面镜调节．如果在光线条件较差实验室里使用显微镜，应该使视野变亮，故用大光圈、凹面镜调节．

单项选择题

易误诊为肝内肿瘤的胆囊癌类型是：()

A．蕈伞型

B．厚壁型

C．混合型

D．实块型

E．结节型
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写作题

书面表达。

       假设你叫Lucy，昨天收到了朋友Nick的e-mail，得知他马上就要期末考试了，但是每次考试之前他总是紧张，不知道做些什么。请你用英文给他回复一封e-mail，提出你的建议和祝愿,如：考前制定详细的复习计划；有问题及时向老师同学请教；早睡早起, 睡眠充足；健康饮食等等。

       注意：1. 用英语写一篇80词左右的短文。 

                 2. 信的开头和结尾已给出不计入总词数。

Dear Nick,

       Thanks for your letter. You asked me for some advice on how to prepare for an exam. Here is something

for you to follow.                                                                                                                                      

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                 Yours, 

                                                                                                                                                  Lucy  
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