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【单选题】
下面对数组的every()方法的返回值类型描述正确的是( )。A.
字符型
B.
数组
C.
布尔型
D.
任意类型
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反馈参考答案：
举一反三
【简答题】口算． 7×30= 63÷3= 56-39= 14×4= 560÷8= 500×9= 400÷8= 13+37=
【单选题】The navigation systems in cars like Lexus, BMW and Audi are mentioned to show ______.
A.
the immaturity of the new technology
B.
the superiority of the global positioning system
C.
the cause of price fluctuations in car equipment
D.
the different ways of providing guidance to the driver
【简答题】什么是雪崩倍增效应？
【单选题】Cars are mentioned in Paragraph 2 to show ________.
A.
the Internet can provide maps to guide drivers in traffic jams
B.
people can solve air pollution and traffic jams by using the Internet
C.
the Internet, like cars, brings convenience and causes problems at the same time
D.
the negative effects they cause
【简答题】直接写出得数 3.05×1000= 125×8= 84+0÷16= 156-28-72= 9.1÷10= 56+= 900÷25÷4= 37+63×0=
【简答题】直接写得数． 3 7 ÷ 3 7 = 5 6 - 3 4 = 63× 1 7 = 5 9 ÷ 3 5 = 2 3 ÷ 3 4 = 1 2 ÷ 1 5 = 1 6 + 5 6 = 2 3 - 2 5 = 3 4 × 9 35 + 3 4 × 26 35 = 5 7 ×8÷ 5 7 = 9×( 2 3 - 1 9 ) =
【单选题】What are the negative effects of ordinary cars mentioned in the lecture?
A.
Cars cost too much
B.
Cars are hard to repair
C.
Cars often cause traffic jam
D.
Cars killed people in accidents
【简答题】把80,36,63,56,37这五个数按从小到大的顺序填在方格里。
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