皮皮学，免费搜题
登录
搜题
【单选题】
光纤传感器一般由三部分组成,除光纤之外,还必须有光源和 ( ) 两个重要部件A.
反射镜
B.
透镜
C.
光栅
D.
光探测器
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
【简答题】Angela Zou hardly writes text messages now. Sitting at her office desk, Zou asks her iPhone, where they should go to eat. When it buzzes seconds later, she lifts it to her ear for her friend's reply. ...
【单选题】Aunt Li often asks her son _____too much meat,it's bad for his health. [ ]
A.
don't eat
B.
not to eat
C.
not eat
D.
to not eat
【简答题】听对话，回答问题。 1. Why is the girl going to buy a present for her uncle? A. The boy asks her to do that. B. Her uncle's birthday is coming. C. Her uncle is leaving. 2. Why doesn't the girl want to buy a wat...
【单选题】Aunt Li often asks her son ______ too much meat. It's bad for his health. [ ]
A.
don't eat
B.
not to eat
C.
not eat
D.
to not eat
【简答题】意大利早期歌剧的代表人物除蒙特威尔第外最重要的人是那波利歌剧的代表作曲家( )。
【简答题】意大利早期歌剧的代表人物除蒙特威尔第外最重要的人是那波利歌剧的代表作曲家( )请严格按书本文字答题。他的宣叙调分为( )和( )。他的咏叹调( )占据主导地位。
【单选题】Aunt Li always asks her son _____ too much meat. [ ]
A.
don't eat
B.
not to eat
C.
not eat
D.
to not eat
相关题目：