—Whose school bag is that?
—It's __________.[ ]
A. Tom
B. my sister
C. mine
答案:C
经纬仪十安丝竖丝应垂直横轴。
《中华人民共和国药典》1995年版规定,马钱子炮制品中含士的宁量应为
A.0.10%~0.20%
B.0.40%~0.50%
C.0.78%~0.82%
D.0.90%~1.00%
E.1.10%~1.20%