SF6开关开关液压范氮气泄漏报压力()。
A.35.5MPa
B.37.5MPa
C.32.0MPa
D.30.8MPa
参考答案:A
.
The little girl _______ reading her favourite book alone under the tree, while the rest _________ talking excitedly about their trip.
A.was, was
B.was, were
C.were, was
D.were, were
海内外炎黄子孙共同拜祭的祖陵是[ ]
A.中山陵
B.乾陵
C.秦始皇陵
D.黄帝陵