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【单选题】
有关聚乙烯的说法正确的是( )
A.
聚乙烯塑料袋因有毒,故不能装食品
B.
聚乙烯具有固定的元素组成,因而有固定的熔沸点
C.
聚乙烯是通过加聚反应生成
D.
聚乙烯性质稳定,故不易造成污染
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【简答题】“Yes, so, sir,”I rejoined: “and yet no so;for you are a married man -- or as good as a married man, and wed to oneinferior to you – to one with whom you have no sympathy – whom I do not believeyou tru...
【简答题】Complete the sentences with some or any Can you see_____bikes under the tree? I have no paper. Please give me _________. Would you like ________ more rice? She doesn't want _________ chalk. ________ m...
【单选题】Dialogue 2 R: Good evening, sir. Can I help you? G: Yes, please. ( 1 ) R: May I have your name, sir? G: Saint Louis. R: Thanks. Let me see. ( 2 ). You’ve reserved a double room with 2 gue...
A.
By cash
B.
By traverler's cheque
C.
By Wechat
D.
By credit card
【单选题】旷课达到某门课程的( )即被取消期末考试资格?
A.
1/2
B.
1/3
C.
1/4
D.
1/5
【简答题】在斯托克斯沉降区,颗粒的沉降速度与其直径的 次方成正比;而在牛顿区,与其直径的 次方成正比。
【判断题】在斯托克斯沉降区,颗粒的沉降速度与其直径的 0.5 次方成正比;而在牛顿区,与其直径的 2 次方成正比。
A.
正确
B.
错误
【单选题】说明:导入时请删除说明内容
A.
本编辑框可快速录入选择题(单选和多选)、填空题、判断题、简答题。
B.
选择题选项号用大写字母(ABCD…)表示;填空题的空缺处用下划线"____"表示,空与空之间用顿号“、”隔开,
C.
题答案之间用分号“;”隔开,并以分号“;”结束;判断题答案用“对”和“错”表示。
D.
支持题目答案解析与难易程度:如果包含答案解析,请在题目末行以“答案解析:” 开头,冒号后面添加答案解析内容,
E.
包含难易程度,请在答案的下一行以“难易程度:” 开头,冒号后面添加试题难易程度,答案的下一行是难易程度,难易程度的下一行是答案解析。
F.
题目前需要写题号,题号用小写数字表示;
G.
与选项,选项与选项之间用回车隔开;
H.
题干、选项或答案中间不要手动回车换行,所有的标点符号均为中文;
I.
题目之间用一个空行隔开。
J.
仅支持简单文本内容,不支持图片、公式等复杂内容。 K. 示例如下: L. 2010年2月28日,国务院发布《纲要》向社会公开征求意见,提出了“到2020年基本实现教育现代化,基本形成学习型社会,进入人力资源强国行列”的战略目标。这里的《纲要》是指( )。
【多选题】在斯托克斯定律区,颗粒的沉降速度与其直径的( )次方成正比。牛顿定律区,颗粒的沉降速度与其直径的( )次方成正比。
A.
1;
B.
2;
C.
0.5;
D.
0.25
【单选题】Dialogue 2 R: Good evening, sir. Can I help you? G: Yes, please. ( 1 ) R: May I have your name, sir? G: Saint Louis. R: Thanks. Let me see. ( 2 ). You’ve reserved a double room with 2 gue...
A.
Yes, we do have your reservation
B.
Yes, we have your reservation
C.
Yes, we do have you reserve
D.
Yes, we do have you reservation
【单选题】Dialogue 2 R: Good evening, sir. Can I help you? G: Yes, please. ( 1 ) R: May I have your name, sir? G: Saint Louis. R: Thanks. Let me see. ( 2 ). You’ve reserved a double room with 2 gue...
A.
I booked a room before I was leaving from US.
B.
I made a reservation before I was leaving from US.
C.
I made a call before I was leaving from US.
D.
I made a reserve before I was leaving from US.
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