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【简答题】
听下面一段对话，回答1-5五个小题 1. Why won't they go to the water village tomorrow? A. Because Sarab isn't t able to swim. B. Because John can't swim. C.Because Sarab has been there. 2. How many times have they ever been to the amusement park? A. Once B. Many times C. Twice 3. When did Sarab go to the acquarium? A. On her last company trip. B. On her last family trip. C. On her last school trip. 4. How many times has John been to the space museum? A. Never B. Once C. A lot of times 5. Where are they going at last? A. The space museum. B. The amusement park. C. The water village.
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举一反三
【单选题】为表示“ a 和 b 都不等于 0 ”,应使用的 C 语言表达式 是( )
A.
!(a=0)&&(b!=0)
B.
(a!=0) || (b!=0)
C.
a&&b
D.
a||b
【单选题】为表示“ a 和 b 都不等于 0 ” ,应使用的 C 语言表达式是( )
A.
（ a!=0 ） || （ b!=0 ）
B.
a || b
C.
a && b
D.
! （ a=0 ） && （ b!=0 ）
【单选题】为表示 “a 和 b 都不等于 0” ,应使用的 C 语言表达式是
A.
(a!=0)||(b!=0)
B.
a||b
C.
!(a=0)&& !(b=0)
D.
a&&b
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