每台电梯应单独装设主电源开关,该开关不应切断下列供电电路().
A.轿厢照明和通风
B.电梯主回路电源
C.控制电路
D.安全电路
参考答案:A
(2013·新课标Ⅱ)Only by increasing the number of doctors by 50 percent ________ properly in this hospital.
A.can be the patients treated
B.can the patients be treated
C.the patients can be treated
D.treated can be the patients
()是内容诸要素的结构方式和外部表现形态。