影响心理发展的两个主要因素是______和______。
参考答案：遗传、环境
心室颤动进行电复律治疗时，通常能量选择为______
A．50～100J B．100～150J C．150～200J D．200～360J E．360以上
The reason ____ his coming to China is _____ he wants to study in China. [ ]
A. why; that
B. why; because
C. for; that
D. for; because
