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【简答题】
Fill in the blanks by selecting suitable words from the word bank. You may not use any of the words more than once. A. abundant F. distress K. curious B. superficial G. presently L. obliged C. tedious H. efficiently M. destinations D. absorbed I. adjusted N. evidently E. functions J. beneficial O.bulk The Internet has made English learning much easier. English learners used to be (1)___ to spend their time in libraries looking for the books that would help them in their language studies. It was very inconvenient because a lot of materials could only be found in (2)____and uninteresting textbooks and readers. But today authentic content on a variety of subjects is only a click away. This is especially (3)____ for those who wants to learn English earnestly. In order to achieve fluency in English, you need to be comfortable using at least 10,000 words. The (4)___materials on the Internet make it possible for you to choose appropriate content to read and listen to. These materials can be (5)___ to your level if you input some key words in the search engine. But how can you remember the (6)___ of unfamiliar words? In this case, the Internet (7)___ makes it easier to learn vocabulary. You can use online dictionary. You can use online dictionaries to instantly find out their grammatical (8)___ and the specific meaning of these words. The Internet helps you to (9)___ accumulate vocabulary based on lively and interesting language content, which greatly reduces your (10)____ caused by inability to remember the new words. The efficiency of this vocabulary learning is one of the reasons why the Internet has become an ideal place to learn English.
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【简答题】(15分)现有氧化铜和铜粉组成的混合物。某同学利用下图所示装置,通过测定 混合物质量、实验前后U型管质量变化来确定混合物中氧化铜的质量分数。 回答下列问题: (1)U形管中可以加入的物质是 _________ (填序号); A、浓 B、无水硫酸铜粉末                           C、无水氯化钙颗粒 (2)下列步骤按实验操作顺序应为 _________ (填字母); A.停止...
【单选题】语言符号的任意性是指( )
A.
语言符号可以任意使用和创造
B.
绝大多数语言符号的能指和所指之间没有必然的理据关系
C.
可以任意使用语言符号给事物命名
D.
语言符号的能指和所指可以任意改变
【单选题】语言符号的任意性是指:
A.
语言符号可以任意改变。
B.
语言符号可以表达任意事物。
C.
任意事物都可以用语言符号来表达。
D.
语言符号的音义联系并非是本质的,必然的,而是由社会成员共同约定的。
【单选题】语言符号的任意性是指:
A.
语言符号的创制和使用总是任意的
B.
可以任意理解的语言符号
C.
语言符号音义间没有必然的本质的联系
D.
音义间的随意性
【单选题】语言符号的任意性是指( )
A.
绝大多数语言符号的能指和所指之间没有必然的理据关系
B.
语言符号的能指和所指可以任意改变
C.
语言符号可以任意使用和创造
D.
可以任意使用语言符号给事物命名
【简答题】现有氧化铜和铜粉组成的混合物。某同学利用下图所示装置,通过测定混合物质量、实验前后U型管质量变化来确定混合物中氧化铜的质量分数。 回答下列问题: (1)U形管中可以加入的物质是 _________ (填序号); A.浓 B.无水硫酸铜粉        C.无水氯化钙颗粒 (2)下列步骤按实验操作顺序应为 _________ (填字母); A.停止通氢气;            B.电热丝通电;  ...
【单选题】在确定子镜片顶点高度时,当镜框内缘最低点不在瞳孔中心下方时,所测量的子镜片顶点高度会太低,这时可以利用( )来重新测量子镜片顶点高度
A.
平均值法
B.
方框法
C.
基准线法
D.
目测法
【单选题】提示有营养不良的指标是
A.
1年内体重下降超过3%,或3个月体重下降2%
B.
1年内体重下降超过5%,或3个月体重下降2%
C.
1年内体重下降超过5%,或3个月体重下降3%
D.
1年内体重下降超过10%,或3个月体重下降3%
E.
1年内体重下降超过10%,或3个月体重下降5%
【简答题】根据给定的原理图和具体要求、步骤,完成一个完整的电路板PCB设计。
【判断题】重托起盘要求右手协助左手,慢慢将托盘托起,并转动托盘送至左肩外上方,右手撤回,盘底约离肩2厘米。
A.
正确
B.
错误
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