皮皮学，免费搜题
登录
搜题
【单选题】
按照我们的规定,您需要交预付款A.
We ask you pay in advance
B.
We ask to pay you in advance
C.
We ask you whether to pay in advance
D.
We ask you got pre-paid
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】地球上昼夜现象形成的“完全必要”条件是 ①地球本身不发光 ②地球在不停地自转 ③有一颗并且只有一颗太阳照耀着地球 ④地球是一颗不透明的天体 ⑤地球只有一颗天然卫星——月球 ⑥地球在不停地围绕着太阳公转 [ ]
A.
①②③⑥
B.
①②③
C.
①③④
D.
③④⑤⑥
【多选题】、火法炼铜的工艺过程主要包括四个步骤( )
A.
造锍熔炼
B.
铜锍吹炼
C.
粗铜火法精炼
D.
阳极铜电解精炼
E.
CD
F.
、铜锍主要成分为（ ）
G.
Cu2S
H.
FeS
I.
PbS
J.
ZnS
【单选题】一I wonder _______________________. 一You should call her to make sure, so we can know where to pick her up.
A.
when Lisa is leaving
B.
whom Lisa is coming with
C.
whether Lisa is coming by train or by air
【单选题】We have to make sure that her _________( = breathing passage) is secure.
A.
air
B.
breath
C.
airway
D.
tube
【简答题】请为下列选项进行匹配
【简答题】I reached for her hand and reassured her that we were going to make it .
【单选题】We have to make sure that her __________(=breathing passage) is secure.
A.
air
B.
breath
C.
air way
D.
breath way
相关题目：
参考解析：
知识点：
题目纠错 0
发布
