正确答案: D

医院里，医生利用B超可观察到母体内的婴儿情况

题目：下列设备的运行与电磁波无关的是

解析：D

查看原题 点击获取本科目所有试题

举一反三的答案和解析：

[单选题]16．

instead of

解析：16．B【解析】本题考查短语辨析。ask for要……； instead of代替，而不是rexcept for除……之外；be- cause of因为。该句意为“他没有把花放到我的手里，而是无理由地把它举到半空”。

[单选题]--Excuseme.MayIuseyoureraser,please?--Sure.______

Goahead.

[单选题]下列物质中，不能提供动物生命活动所需能量的是

水

[单选题]1． Don't talk loudly _______public． Because it's a bad manner．

in

解析：

i.i．A【解析】．m public“当众，在公共场合”，固定用法。

故答案为A。

[单选题]Thereis________wrongwiththiscomputer.Itdoesn’tworkwell.

something

[单选题]28． The underlined word "relatives" means "_______ " in Chinese．A . 律师

亲属

解析：B【解析】前面说“爷爷奶奶、叔叔”，后面自然是 “其他的”“亲属”了。

[单选题]6． In the world a great number of people ________to study Chinese．

start

解析：6.C【解析】a number of意为“许多……”后接复数名词，谓语动词用复数形式。

[单选题]17．

like

解析：17.A【解析】举例说明，若用for example，应有逗号与所列举的内容隔开。

[单选题]Do you know how to study better and make your study more effective(有效率的)? We all know that Chinese students usually study very hard for long (11) ．This is very good，but it doesn't (12)a lot，for an efficient student must have enough sleep，enough food and enough rest and exercise． Every day you need to go out for a walk or visit some friends or some places． lt' s good for your study．When you return (13) your study，your mind will be refreshed and you'll learn more (14) study better． Psychologists(心理学家)(15) that learning takes place this way． Here takes English learning (16) example． First you make a lot of progress and you feel happy． Then your language study seems (17) the same，so you will think you're learning (18) and you may give up． This can last for days or even weeks，yet you needn't give up． At some points your language study will again take another big (19) ． You will see that you really have been: learning all long． lf you get enough sleep，food，rest and exercise，studying English can be very． effective and (20) Don-t give up along the way learning slowly and you're sure to a

hours

解析：Ⅱ．11．C【解析】句意。我们都知道中国学生通常一连几个小时努力地学习。其余三项均不合题意。