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【多选题】
关于绝缘子，下列说法正确的是（ ）。A.
绝缘子用来使导线和杆塔之间保持绝缘状态，承受导线和各种附件的机械载荷。
B.
良好的电气性能和机械强度。
C.
按材料分，可分为：瓷、钢化玻璃、合成绝缘子。
D.
按形状分，可分为：针式、蝶式、悬式、棒式等。
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【单选题】There are not many teachers who are strong______ of traditional methods in English teaching.
A.
sponsors
B.
advocates
C.
contributors
D.
performers
【简答题】There are not many teachers who are strong ________ of traditional methods in English teaching. A) sponsors B) contributors C) advocates D) performers
【单选题】There are not many teachers who are strong ______ of traditional methods in English teaching.
A.
sponsors
B.
contributors
C.
advocates
D.
performers
【单选题】In many countries in the world, breakfast is a snack ______ a meal, but the traditional English breakfast is a full meal.
A.
less than
B.
more than
C.
other than
D.
rather than
【简答题】Many people are asking whether traditional research universities in fact have any future _______. A) at all B) so far C) in all D) on end
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