皮皮学，免费搜题
登录
搜题
【单选题】
纳氏试剂法测定氨氮，纳氏试剂与铵离子反应生成络合物是在（）条件。A.
强酸性
B.
酸性
C.
中性
D.
碱性
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】Tom likes to go to the movies _____Mary prefers to go to swimming.
A.
at the same time
B.
as soon as
C.
because
D.
while
【单选题】—I called you at 6 o'clock yesterday evening, but nobody answered. — I'm sorry. I my friend download the movie Kung Fu PandaⅡwhen the telephone rang,
A.
would help
B.
helped
C.
was helping
【单选题】Client: Hello. May I speak to Mr. Turner? Secretary:________
A.
I'm sorry. He's at a meeting now.
B.
I am. Speak, please.
C.
Hello. Who're you, please?
D.
Hello. Thank you for calling.
【单选题】Mary prefers ____ for a walk rather than ____ at home.
A.
to go; staying
B.
going; to stay
C.
to go; stay
D.
going; staying
【单选题】—I called you last night, but there was no answer, —Oh, I'm sorry. I dinner at my friend's home. [ ]
A.
have
B.
had
C.
was having
D.
have had
【单选题】--- What about inviting Mary to our party? --- You’d better not. She prefers to be ____, so far as I know.
A.
tested out
B.
rung up
C.
left alone
D.
turned around
【单选题】— I'm sorry. I _____ at you the other day. — Forget it. I was a bit out of control myself. [ ]
A.
shouldn't shout
C.
shouldn't have shouted C. mustn't shout C. mustn't have shouted
【单选题】— I'm sorry. I _____ at you the other day. — Forget it. I was a bit out of control myself. [ ]
A.
shouldn't shout
B.
shouldn't have shouted
C.
mustn't shout
D.
mustn't have shouted
相关题目：
参考解析：
知识点：
题目纠错 0
发布
