皮皮学，免费搜题
登录
搜题
【单选题】
管道内介质为空气时，管道标志的色样应为（）A.
鲜绿
B.
大红
C.
深灰
D.
中黄
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】She didn’t receive the application form; it _________to the wrong address. A) sent B) be sent C) was sent D) being sent
A.
sent
B.
be sent
C.
was sent
D.
being sent
【单选题】听力原文：M: How's the response to our advertisement for supervisors? W: Well, we have about forty applications, but there's hardly anyone with experience. M: I think we should contact an agency to help us...
A.
Work bonuses.
B.
Marketing policies.
C.
Production figures.
D.
Hiring new staff.
【简答题】两亲性物质
【单选题】We insisted that the sick children ________ to hospital at once. be sent will be sent is sent
A.
must be sent
B.
be sent
C.
will be sent
D.
is sent
【单选题】The headmaster _________ a noisy boy from the library.
A.
sent for
B.
sent out
C.
sent back
D.
sent away
【单选题】She didn’t receive the application form; it _________to the wrong address. A) sent B) be sent C) was sent D) being sent
A.
A) sent
B.
B) be sent
C.
C) was sent
D.
C) was sent D) being sent
【单选题】Listen to the following excerpt and identify the title and composer of this excerpt .
A.
John Cage: Litany for the Whale
B.
Alban Berg: Seven Early Songs
C.
Béla Bartók: Duke Bluebeard's Castle
D.
Stockhausen: Cosmic Pulses
【单选题】Identify the sentence that uses the correct verb tense or tenses.
A.
We was just leaving.
B.
We were just leaving.
C.
We just been leaving.
D.
We is just leaving.
【单选题】对于表面活性物质的基本性质，下列描述不正确的是( )。
A.
表面活性物质都是由亲水性极性基团和憎水性的非急性集团所组成。
B.
表面活性物质定向排列在任意两相的，降低了表面张力。
C.
各种表面活性物质分子具有对称性结构。
D.
表面活性物质分子量在数百左右，介于低分子和高分子之间的一类物质。
相关题目：
参考解析：
知识点：
题目纠错 0
发布
