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【单选题】
The medical reform in that country proved to be _____ failure, but as we know, success often comes after _____ failure．A.
a; the
B.
a; /
C.
a; a
D.
/; /
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【简答题】打断命令的作用?
【判断题】下图中,15为线性折弯标注,左边的3.75为“折断高度因子1.5”乘以“文字高度2.5”得到的数值,具体操作是先进行线性标注15,再用标注面板的“标注,折弯标注”命令或标注菜单栏的“线性折弯”命令对15进行线性折弯。 中间的3.75为折断标注的“折断大小”值,具体的操作是先进行线性标注30,再用标注面板的“打断”命令或标注菜单栏的“标注打断”命令进行折断。 R20为半径折弯标注,具体的操作是利用“...
A.
正确
B.
错误
【单选题】使用打断命令将下图(1)中的外螺纹小径线断开成3/4个圆,如下图(2)所示,如果选择对象时的拾取点,不适合作为打断点时,可在命令执行过程中输入( ),重新定义第一个打断点的位置。
A.
字母C
B.
字母F
C.
字母Z
D.
字母A
【单选题】He missed his mother very much and ________ crying.
A.
can’t help
B.
couldn’t help to
C.
couldn’t help
D.
couldn’t to help
【单选题】As the mountains were covered with a __________ of cloud, we couldn't see tbeir tops.
A.
coating
B.
film
C.
veil
D.
shade
【单选题】Even after reading it for three lines，he couldn’t_____the meaning of that letter.
A.
conceive
B.
consult
C.
contrast
D.
concern
【简答题】A．She couldn't find a part-time job. B．She was expelled by the school. C．She couldn't continue her study. D．She refused to study at school.
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