封闭式基金是指基金份额在基金合同期限内固定不变，基金份额可以在依法设立的证券交易所交

低倍数空气泡沫是指泡沫混合液吸入空气后，体积膨胀不大于()倍的泡沫。

A．30

B．40

C．20

D．60

燃烧镁条时，夹持镁条用

A．坩埚钳

B．试管夹

C．手

D．止水夹

下列声息中哪几项属阳（）。

A.语声高亢

B.呼吸微弱

C.语音低怯

D.呼吸气粗

E.呼吸有力

秦某有一中巴，经有关部门批准，秦某跑起了自北京市区至郊区某线路的短途运输业务。某日，秦某在超速驾驶中，为避免与李某的客车相撞，紧急刹车致乘客钱某的物品毁损。经查，钱尚未买车票，则钱某的损失秦某应否赔偿( )。

A．不应赔偿，因为秦某与钱某的合同尚未成立

B．不应赔偿，秦某系紧急避险可以免责，应由李某赔偿

C．应赔偿，合同虽未成立，但秦某应负缔约过失责任

D．应赔偿，运输合同已经成立，秦某有过失

All the following statements are true except：（）.

A．It is axiomatic of the quality management discipline that the benefits outweigh the cost

B．Quality should mainly be achieved by testing and inspections of work results on a regular bas

C．The primary cost of meeting quality requirements is the expense associated with project quality management activitie

D．The primary benefit of meeting quality requirements is less rework，which means higher productivity，lower costs，and increased stakeholder satisfactio