腹部平片检查最常用于诊断
A.胃溃疡
B.肠梗阻
C.十二指肠憩室
D.结肠癌
E.食管癌
参考答案:B
It's 7 o'clock. My family ______ dinner at home. [ ]
A. is having
B. are having
C. has
D. have
甲和乙用如下图的两个转盘做游戏,游戏规则如下:分别旋转两个转盘,当两个转盘所转到的数字之积为奇数时,甲得2分;当所转到的数字之积为偶数时,乙得1分,则这游戏规则______。
A.对双方都公平
B.对甲不公平
C.对乙小公平
D.对双方都不公平