除哪一项外,其余均可有血小板增多()
A.慢性粒细胞白血病
B.脾切除术后
C.原发性血小板增多症
D.脾功能亢进症
E.创伤
参考答案:D
-The terrible accident might not have happened had the driver been more careful.
--But he _____.
A.wasn’t
B.didn’t
C.hadn’t
D.doesn’t
“十五”时期,粮食产量最高的年份是哪一年( )
A.2002
B.2003
C.2004
D.2005