硅整流发电机在较低的空载转速下，就能达到额定电压值，说明了硅整流发电机具有（）好的优点。
参考答案：低速充电性能
据下列句子及所给汉语注释，写出空缺处各单词的正确形式。（每空只写一词）
66.There are seven (大洲)in the world.
67.Jim said that the whitewater rafting trip was full of （刺激）.
68.They all wish to protect the (传统)Chinese culture.
69.An (通告) is being made that we’ll be off for two days.
70.Don’t worry. Everything is （正常的）.
71.The parents （原谅）the boy for his rudeness.
72.People want to buy the （最新的）newspapers; nobody wants to buy yesterday’s.
73.Some smoking and alcoholic drinks are an a________ taste and are not in born.
74.Have you c__________ a doctor about your cold?
75.A healthy life is frequently thought to be a_______ with the open countryside and homegrown food.
半地下室是指房间地平面低于室外地平面的高度超过该房间净高（），且不超过（）者。
A、1/5，1/4
B、1/4，1/3
C、1/3，1/2
D、1/2，2/3
