现阶段大功率LED的流明数为多少？

下列依次在①②③处填入的词语和句子，语意和衔接都最恰当的一项是[ ]

　　禾木村是中国西部最北端的村庄，它依然保留着最古朴的面貌。这里有自然的山野风光，风景独特、优美。_________①。黄昏时候，夕阳映照着成群结队暮归的牧群，闲逸、_________②，俨如一个世外桃源；夜色降临，四周漆黑一片，只有天上的繁星_________③。

A．①古朴的村落与大草原和谐自然地融为一体②恬静③闪烁

B．①古朴的村落与大草原和谐自然地融为一体②安静③闪现

C．①大草原与古朴的村落和谐自然地融为一体②恬静③闪烁

D．①大草原与古朴的村落和谐自然地融为一体②安静③闪现

—Where did you go last night?

－I _______to go to Lily’s birthday party.

A．have been asked

B．have asked

C．asked

D．was asked

It was only after he had spent several nights digging around the cross ________ he decided to write to Kit Williams to find out if he was wasting his time there.

A．that

B．how

C．and which

D．what

上海证券交易所B股的一般结算会员包括（）。

A.B股托管银行

B.B股的境外代理商

C.B股机构投资者

D.获得B股经纪商资格的证券经营机构

承重模板必须待混凝土达到规定强度才可拆除。