中国西部地区最大的辣椒生产县是()
A、秀山县
B、武隆县
C、石柱县
D、酉阳县
参考答案:C
There are two new buildings near the sea, and ____of them are very tall.
A.none
B.all
C.neither
D.both
实验室制下列各组气体,所用气体发生装置相同的是
A.H2和CO2
B.H2和O2
C.Cl2和CO2
D.Cl2和H2