证券市场是指( )。A．证券投资者博弈的场所 B．证券发行与交易的市场 C．证券交易

若2x²+3x+7的值是8 ，则代数式9-4x²-6x的值为（    ）。

患者，突然昏厥，喉有痰声，呕吐涎沫，呼吸气粗，舌苔白腻，脉象沉滑。治法为

A．豁痰清热

B．解郁化痰

C．行气豁痰

D．清心豁痰

E．清化痰热

Students who pass the test will be ______ to the next grade, as has been announced.

A．possessed

B．promoted

C．proposed

D．appealed

氨基酸衍生物