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【简答题】
燃烧时易熔融,火焰为蓝色,并有刺激性臭气的是( )。 A.硫黄 B.明矾 C.雄黄 D.朱砂 A. 1 B. 1 C. 1 D. 1
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【单选题】Look, the boys over there seem ________.
A.
quarrelling
B.
to quarrel
C.
to be quarrelled
D.
to be quarrelling
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【多选题】以下关于变量的解构赋值说法正确的有哪些?
A.
数组的解构赋值是按照数组元素的顺序与解构变量的顺序相对应来赋值。
B.
数组不能用于对象解构赋值。
C.
可以对任何数据类型的数据进行解构赋值。
D.
解构赋值可以用于交换两个变量的值。
E.
解构赋值可以用于对JS对象中包含的数据和方法进行提取。
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