对单纯疱疹病毒的描述正确的是() A.嗜神经的RNA病毒 B.嗜神经的DNA病毒 C 发布时间:2017-08-05 14:00 │ 来源:www.tikuol.com 题型:单项选择题 问题: 对单纯疱疹病毒的描述正确的是()A.嗜神经的RNA病毒B.嗜神经的DNA病毒C.非嗜神经的RNA病毒D.非嗜神经的DNA病毒E.Ⅰ型为DNA病毒Ⅱ型为RNA病毒
题型:单项选择题 根据对话内容,从方框内选择恰当的句子填入对话相应的空白处,使对话完整,合乎情景(有两个多余选项)。A:Hello,Mike! What's the time?B:(1) ______________________________A:Where’s Bob? I can't find him.B:I don't think he can come.A:(2) ______________________________B:He has to look after his sister.A:(3) ______________________________B:She doesn't feel well.A:(4) ______________________________Did she go to see the doctor?B:Yes.A:(5) ______________________________B:The doctor said nothing serious,but she has to rest.A. Why can't he come?B. I'm sorry to hear that.C. Where did the doctor go?D. It's half past eight.E. What did the doctor say?F. I'm glad to hear that.G. What’s wrong with his sister? 查看答案
题型:单项选择题 在“观察凸透镜成缩小实像的条件”的实验中: (1)实验器材需要:凸透镜、_______ 、_______ 、刻度尺、火柴、粉笔。 (2)实验中,当把蜡烛放在离凸透镜远大于二倍焦距的地方,调整光屏,直到屏上出现明显清晰的像,这个像是______的________的_______像。当蜡烛移近凸透镜时(仍保持大于二倍焦距),像的大小会变_______,像到透镜的距离会变_________。 查看答案