柜台交易的转让价格一般由证券公司报出，并根据投资者的接受程度而进行调整。( )
参考答案：对
“It’s a long time since I enjoyed myself.” This sentence means______.
A．I enjoyed myself for a long time
B．I haven’t enjoyed myself for a long time
C．I want to enjoy myself
D．What a long time after I enjoyed myself
我国对克隆技术是否应该用于人类的立场是（）
A.允许治疗性克隆，不允许生殖性克隆
B.不允许治疗性克隆，允许生殖性克隆
C.允许一切克隆
D.不允许一切克隆
E.以上都不是
