用第一或第二条件句完成句子。 This soup isn't very good. It _____(taste) better if it wasn't so salty.
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用第一或第二条件句完成句子。 You are always tired. If you ______(not/go) to bed so late every night, you wouldn't be tired all the time.
对于整型变量a,b,c;使用格式化输入来输入变量的数值,不正确的语句是( )。
A. scanf("a=%db=%dc=%d",&,a,&b,&c);
B. scanf("a=%db=%dc=%d",a,b,c);
C. scanf("%d%d%d",&,a,&b,&c);
D. scanf("%d,%d,%d",&,a,&b,&c);
格式化输入函数scanf()的使用格式是:scanf(格式控制,地址列表);
A. 对
B. 错
一般()管不宜焊接。
A. 塑料管
B. 铜管
C. 不锈钢管
D. 镀锌钢管