关于前列腺素,下列哪项不恰当()
A.可使子宫肌肉收缩
B.月经血中可有前列腺素
C.是产生痛经的原因
D.对下丘脑及垂体功能无影响
E.存在于子宫内膜、卵巢中
参考答案:D
To make sure that relics in he museum are well preserved, Tibet's cultural preservation
institutions have ________ modern technologies to monitor the conditions of the relics. [ ]
A. adapted
B. applied
C. appointed
D. abolished
证监会无权要求证券交易所暂停或者恢复上市证券的交易。()