A:充分不必要条件
B:必要不充分条件
C:充分必要条件
D:既不充分也不必要条件
填关联词,并指出关联词的类型。
____我们赵国武有廉颇,文有蔺相如,____秦王不敢侵犯我国。类型:____
They found __________ impossible to finish so much work in such a short time.