在发动机涉水时,如将水吸入发动机缸体内部,最可能发生以下哪种极端危险的情况()
A.发动机起火
B.发动机气门折断
C.发动机连杆折断
D.发动机正常运转
参考答案:C
Zhang Hong is said___________by heart 2000 words up to now .
A.that she has learned
B.to have learned
C.to learn
D.having learned
何谓癫痫?