()
A.A
B.B
C.C
D.D
参考答案:B
解析:
本题为特殊组合数列。原式可变为,各加式第一项构成以2为公比的等比数列,根号内的数字构成公差为5的等差数列,因此空缺项为
In peace, too , the Red Cross is expected to send help _________there is human suffering.
A.whoever
B.however
C.whatever
D.wherever
绝经后 * * 大量恶臭分泌物,短期内超声多次检测发现子宫和原有肌瘤迅速增大,考虑为()
A.子宫肌瘤退变
B.子宫肉瘤
C.葡萄胎
D.子宫内膜癌
E.子宫肌瘤红色样变