下列关于主动控制的表述中，正确的是( )。 A．主动控制是在输出环节之前就要采取预

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Jane usually gets up at six thirty in the morning. She takes the shower at twenty to seven. Then she   小题1:breakfast at seven and after that she goes to school. She has lunch at twelve o’clock . She likes rice and vegetables  小题2:lunch. She thinks they are healthy. She usually   小题3:volleyball with her friends after school. She likes swimming and she wants to   小题4: the sports club. Her best friend Lisa is  小题5:the swimming club. She   小题6: well. She always   小题7: Jane with swimming. They go home at  小题8:  six o’clock in the evening.

有关脐膨出的治疗下列哪项不正确（）

A.先天性脐膨出应尽早手术

B.早期肠道内积气较少，无感染，有利于肠管及脏器还纳

C.生后3～4天才就诊，羊膜表面已有感染者可先行非手术疗法

D.脐膨出均行一期修补术

E.脐膨出病儿治愈后效果良好，可正常发育

对于万有引力定律的表达式，下列说法中正确的是[ ]

A．公式中G为引力常量，它是由实验测得的，而不是人为规定的

B．当r趋于零时，万有引力趋于无限大

C．两物体受到的引力总是大小相等的，而与m₁、m₂是否相等无关

D．两物体受到的引力总是大小相等、方向相反，是一对平衡力

综合安全技术

列车长度应根据到发线的有效长度，并须预留( )m的附加制动距离确定。

A．10

B．30

C．50

D．70

王码五笔字型输入法属于

A．音码输入法

B．形码输入法

C．音形结合的输入法

D．联想输入法