B is now distinctly slower than a, c, and d.
b现在明显比a、c和d慢。
Many letters in the alphabet such as b, c, d, etc are consonants.
字母表中的许多字母像b,c,d，等等都是辅音字母。
Swimming time of A, B, C groups were significantly longer than D group.
B、C三组的游泳时间均比D组要长，统计具有显著性差异。
You may borrow this dictionary A. as long as B. so far as C. in case D.
只要你能保证这本字典干净，你借多长时间都行。
Answer the questions after each text by choosing A, B, C or D.
超出答题区域书写的答案无效；
Answer the questions after each text by choosing A, B, C or D.
超出答题区域书写的答案无效；
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