特发性血小板减少性紫癜血小板相关抗体主要抗体成分为（） A.IgA B.IgE C.

一只标有“12V 6W”的灯泡，为使它在24V的电路中正常工作，必须给它______联一个______Ω的电阻，此时电阻消耗的功率是______W．

三聚氰铵其化学式：C3N6H6，白色单斜晶体，国内方面俗称蛋白精，具毒性，不溶于水．分子中碳、氮的原子个数比为______，它的相对分子质量为______，三聚氰铵的物理性质有______（一到两点），化学性质有______

Not only _____interested in changing teaching methods but _____beginning to show an interest in it.

A．the teacher himself is; all his students are

B．the teacher himself is; are all his students

C．is the teacher himself; are all his students

D．is the teacher himself; all his students are

Don’t lie.You are _______ honest boy.

A．a

B．/

C．an

D．the

南京市儿童医院在（）上。

A.中山路

B.虎踞南路

C.广州路

D.西康路