根据数控机床的类型,控制介质有()等。
A.穿孔带
B.穿孔卡
C.磁带
D.其他记载代码的载体
参考答案:A, B, C, D
需要他人帮助转移的患者肌力一般小于()
A.1级
B.2级
C.3级
D.4级
E.5级
________ you read English easily, you'll find it is another cup of tea to make conversation in English.
A.So long as
B.As soon as
C.Even if
D.Only if