在更换耐张杆前,要在被更换杆基两侧杆上各打一把()。
A.反向临时拉线
B.同向临时拉线
C.水平拉线
D.人字拉线
参考答案:A
—Health goes ahead of everything.
—Yes. Keeping _____ balanced diet is good for ____ health.
A.the; /
B.a; the
C.the; the
D.a; /
眩晕的病变部位在于()
A.心
B.肝
C.脾
D.肾
E.头窍