厨房用电应随时观察电器运行情况，有异常现象立即断电检查。( )

划分东西半球的界线是（　　）

A．东经180° 西经0°

B．东经20° 西经160°

C．东经160° 西经20°

D．东经90° 西经90°

—It’s said that Zhao Benshan as well as Xiao Shenyang flew to ChongQing in his own plane .

—Really, When was ________?

—_________ was in April when the closing ceremony of the 2009 Three Gorges International Tourism Festival was held in FuLing, ChongQing.

A．that This

B．this It

C．it This

D．that It

肘膝位腹部叩诊，可帮助测定微量腹水，其可测出最小量约为多少（）

A.120ml

B.200ml

C.300ml

D.400ml

E.500ml

典型心绞痛发作持续时间约（）分钟。

A.2～3

B.3～5

C.5～7

D.7～10

E.10以上

如何看待发展中国家的金融危机？其教训是什么？