皮皮学,免费搜题
登录
搜题
【单选题】
胚胎期的生理性脐疝发生于
A.
人胚第2
B.
人胚第4
C.
人胚第6
D.
人胚第8
E.
人胚第10
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】基于外光电效应制成的光电元件是()
A.
光敏电阻
B.
光敏晶体管
C.
光电倍增管
D.
光电池
【简答题】Our class usually begins at 10 o'clock, but yesterday it _______ (begin) at 10:30.2. My roommate often comes home around midnight, but last night he _______ (come) home at 3 a.m.3. I almost always do ...
【简答题】Where's your class?
【简答题】给问句选择合适的应答句。 (     ) 1. What colour is your shirt? (     ) 2. Where's my jacket? (     ) 3. How many students are there in your class? (     ) 4. What time is it? A. It's in your bag. B. It's six thir...
【简答题】给下列问句选择合适的答语。 (     ) 1. Do you have a library? (     ) 2. Where's Lily? (     ) 3. Where are you from? (     ) 4. How many students are there in your class? A. She's in the garden. B. Fifty-two. C. Y...
【简答题】选择合适的应答句。 (     ) 1. What colour is your shirt? (     ) 2. Where's my jacket? (     ) 3. How many students are there in your class? (     ) 4. What time is it? A. It's in your bag. B. It's six thirty....
【简答题】听录音,选出一个你所听到的句子。 (     )1.  A. Your books are on the sofa. (     )2.  A. Where's the lost and found case? (     )3.  A. Do you have a volleyball, Barry? (     )4.  A. Please read aloud in class. (    ...
【简答题】医院环境可分为社会环境和( )环境,社会环境又可以分为( )环境和( )环境
【判断题】光电管和光电倍增管是基于外光电效应原理制成的光电元器件。
A.
正确
B.
错误
【简答题】医院的环境可分为社会环境和 _________ 环境。社会环境又可分为 _________ 环境和 _________ 环境。
相关题目: