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【简答题】
将第一讲,第二讲对应的课后习题完成,签名(包括姓名班级学号)拍照上传,作为作业项得分凭证。 要求本完成。
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反馈参考答案：
举一反三
【单选题】早在20世纪70年代,就有人用水晶胶制作标牌,尽管它具有天然水晶的效果,但由于当时水晶胶的质量与制作工艺所限,水晶胶制作的标牌( )与( )都较差。
A.
透明度 耐划伤性
B.
不透明 耐划伤性
C.
都对
D.
都不对
【简答题】阅读理解。 The following are four kinds of medicine at home. We should know how to use them. Never make any mistakes. (1) Take the medicine with water. One pill (片) every eight hours. For further nighttime...
【单选题】According to the governor, why should one use solar panels?
A.
The new law requires every resident to install them.
B.
They are environmentally friendly and efficient.
C.
The energy industry needs to be supported.
D.
They costs less to install than the conventional method.
【简答题】是___的电气图形,文字符号为QS。
【单选题】Although he thought he was helping us to prepare the dinner, he was actually ______ the way.
A.
in
B.
off
C.
by
D.
on
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