【单选题】(1)出院 (2)挂号 (3)呕吐 (4)恶心 (5)洗胃
【判断题】链条中应尽量避免使用过渡链节,这主要是因为装配困难。
【单选题】do you go to the library.I usually go to the library twice a week.
【单选题】链传动中,链条应尽量避免使用过渡链节,这主要是因为()
【单选题】链条中应尽量避免使用过渡链节,这主要是因为()
【简答题】阅读短文,并选择正确选项。 I am Jack. I am very happy every holiday. I usually go to the library. Sometimes I go to the park. The library is not far. I usually go on foot. I walk straight for fif minutes. Then...
【简答题】(1)5 2 =______; (2)4 3 =______; (3)(-1) 5 =______; (4)(-2) 2 =______; (5)-2 2 =______; (6)(-1) 4 =______.
【单选题】I usually go to the office()train.
【判断题】链条中应尽量避免使用过渡链节,这主要是因为装配困难。