皮皮学，免费搜题
登录
搜题
【判断题】
在绘制机械图样时粗实线一般用来表达可见轮廓线、可见过渡线。A.
正确
B.
错误
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
【简答题】土中的自由水包括毛细水和()。
【单选题】We must derive hydrogen from renewable sources with a view to a pure hydrogen economy.
A.
Y
B.
N
C.
NG
【单选题】______, he can now only watch it on TV at home. （1998年考试真题）
A.
Obtaining not a ticket for the match
B.
Not obtaining a ticket for the match
C.
Not having obtained a ticket for the match
D.
Not obtained a ticket for the match
【单选题】Hydrogen is the fundamental element of the universe______it provides the building blocks from which the other elements are produced.
A.
so that
B.
now that
C.
in that
D.
but that
【简答题】We must derive hydrogen from __________________ with a view to a pure hydrogen, economy.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
