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【判断题】
检测是否为真丝织物的办法主要有燃烧法,因为根据经验得知,动物的皮毛燃烧后和人体毛发的燃烧有相似的味道和燃烧物。()A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】输入圆的半径,输出圆的面积和周长,保留二位小数。 PI=3.14
【单选题】Usually there is ______ traffic in the streets on weekdays than on Sundays.
A.
little
B.
less
C.
few
D.
fewer
【单选题】Private cars are required to take turns off roads one out of five weekdays ___the traffic pressure.
A.
relieve
B.
relieving
C.
torelieve
D.
relieve
【简答题】判断下列说法的正误，并说明理由。 语言符号具有任意性的特点，但复合符号的组合不是任意的。
【单选题】According to the study discussed in the second paragraph, which of the following weekdays is the most productive?
A.
Friday.
B.
Wednesday.
C.
Monday.
D.
Thursday.
【多选题】量语的语法特点是
A.
经常用在数词或指示代词后边组成数量或指量词
B.
一般都可以重叠
C.
有时与“一”组合可以构成“一A一A”、“一AA”形式
D.
经常作谓语
E.
可以从名词借用过来
【单选题】They go to school by bus on weekdays. (变成一般疑问句)
A.
Are they go to school by bus on weekdays?
B.
Does they go to school by bus on weekdays?
C.
Is they go to school by bus on weekdays?
D.
Do they go to school by bus on weekdays?
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