以水银为主的制成品是（）
A.铅丹、硫磺
B.轻粉、升药
C.砒石、明矾
D.硼砂、炉甘石
E.雄黄、儿茶
参考答案：B
Allow children to voice their opinions, ____ they are different from your own. [ ]
A. until
B. even if
C. unless
D. as though
1946年，国民党政府设立( )
A．“内政部警政司”
B．“内政部警察总署”
C．“内政部保卫局”
D．“内政部公安总局”
