透明血栓（）。
A.静脉血栓尾部
B.微血栓
C.感染性心内膜炎时心瓣膜血栓
D.静脉石
E.心房球状血栓
参考答案：B
非上市公司的兼并、收购程序有哪些？
He offered to _____ her a hand as the suitcase was too heavy for her to carry.
A．lend
B．help
C．show
D．loan
