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【简答题】
Does Jim come from Australia? Does he come from England? Is the weather always pleasant in England? What's the weather like in the North? What's the weather like in the East? What's it like in the West? Which seasons does Jim like best? Are the days long in spring and summer? Does the sun rise early in summer? Is the climate interesting in England?
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【单选题】Richard made ______ regent of England.
A.
His mother
B.
His father
C.
His brother
D.
His uncle
【多选题】关于牙根的说法，正确的是
A.
下颌磨牙有2个牙根
B.
上颌磨牙有3个牙根
C.
切牙和尖牙有1个牙根
D.
牙根嵌入牙槽内，直接与牙槽骨结合
E.
牙根管内无神经、血管和淋巴管通过
【多选题】下图所示是用维持阻塞结构D触发器组成的脉冲分频电路。则下列描述正确的是 。【图片】
A.
Y 的周期是 CP 周期的 1.5 倍
B.
Y 是 CP 的 1.5 分频
C.
Y 的周期是 CP 周期的 1/3
D.
Y 是 CP 的 3 分频
【判断题】Richard Byrd made the first flight to the South Pole and landed his plane at the Pole.
A.
正确
B.
错误
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