皮皮学,免费搜题
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搜题
【单选题】
人类维生素D的最主要来源是
A.
日光照射皮肤产生
B.
摄入动物肝脏提供
C.
摄入蔬菜提供
D.
摄入水果类提供
E.
摄入蛋类提供
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举一反三
【单选题】They said that they ______ in a week.
A.
will come back
B.
would come back
C.
come back
D.
Came back
【判断题】烘干法测水分恒重的质量为小于0.3mg
A.
正确
B.
错误
【简答题】试述影响复合材料性能的因素。
【单选题】向人们提供某种信息(如表明安全设施或场所)的图形标志是()。
A.
提示标志
B.
警告标志
C.
指令标志
D.
禁止标志
【单选题】From: Roberta Lucci (r.lucci@hereford.com) To: customercare@ezelectronics.com Subject: Order #89274002-499 Date: September 30, 7:27 p.m. Hello, I purchased the Picto ClearShot XS2000 digital zoom came...
A.
it was purchased online.
B.
It was received as a gift.
C.
It was received in one week.
D.
It was sent by registered mail.
【判断题】提示标志是向人们提供某种信息(如标明安全设施或场所等)的图形标志。提示标志的基本形式是正方形边框。实验室常用的提示标志有紧急出口、疏散通道方向、灭火器、火警电话等
A.
正确
B.
错误
【单选题】They said that they decided to the task in spite of the difficult conditions.
A.
carry out
B.
carry off
C.
carry on
D.
carry forward
【单选题】在 PowerPoint2010 幻灯片浏览视图下,不能完成的操作是()
A.
调整个别幻灯片的位置
B.
删除个别幻灯片
C.
编辑个别幻灯片内容
D.
复制个别幻灯片
【单选题】网址字符的开头的“http”表示( )。
A.
高级程序设计语言
B.
域名
C.
超文本传输协议
D.
网址
【单选题】What does the professor imply when he says this?
A.
We do not know that art is around us every day and every minute.
B.
We should pay attention to art no matter what choices we may make.
C.
Our choices are largely based on our preference for certain art styles.
D.
everyday choices is just like art work.
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