题目内容

CRH2A型动车组显示器电源电压画面是为确认牵引变压器/辅助电源装置的动作，显示辅助电压/变流()稳压/蓄电池电压。

A. 120V
B. 110V
C. 100V

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During the WW II, the first summit was held at______in November 194

A. Berlin
B. Potsdam
C. Yalta
D. Teheran

Today about______of the Welsh population still speak Welsh as their first language and about one percent speak only Welsh.

A. half
B. two thirds
C. one fifth
D. a quarter

______is remembered as the monarch who lost the French port of Calais.

A. Edward VI
B. Mary Tudor
C. Elizabeth I
D. Henry VIII

本身对皮肤无刺激性且不污染衣服的是

A. 硅酮类
B. 液状石蜡
C. 羊毛脂
D. 花生油
E. 单硬脂酸甘油酯