异性双胎不育常见于()。
A、山羊
B、奶牛
C、猪
D、马
参考答案:B
世界反法西斯联盟正式形成的标志是[ ]
A、苏德战争开始
B、太平洋战争爆发
C、《联合国家宣言》的签署
D、斯大林格勒战役胜利
John thought he was ____ when the manager asked him for the advice on the new product. [ ]
A. something
B. anything
C. somebody
D. anybody