变压器绕组电压比测量应在（）上进行。
A.各分接
B.最大分接
C.最小分接
D.额定分接
参考答案：A
Yuan Longping ____ an idea for a hybrid rice in the 1960s.[ ]
A. caught up with
B. fell behind
C. came up with
D. put up with
茵陈蒿汤煮药的煎煮顺序是（）
A.先煮大黄，后纳二味
B.先煮栀子，后纳二味
C.三者同时煎煮
D.先煮二味，后纳大黄
E.先煮茵陈，后纳二味
idea for a hybrid rice in the 1960s.[ ]