诉讼时效适用于()。
A.请求权
B.形成权
C.支配权
D.抗辩权
参考答案:A
Faced with so many people, he just couldn't _____ his absence from school. [ ]
A. tell apart
B. account for
C. give away
D. explain to
柴油机燃料供给系由燃料供给、空气供给、()形成以及废气排出四部分组成。