数码相机灰阶拍摄测试时,把相机设置在()像素。
A.最高
B.任意
C.最低
D.中间
参考答案:A
Exploring ________ space is exciting, yet dangerous. There is _______need for both robots and humans for space exploration.
A.the; a
B.a; the
C./; a
D./; /
普通金属芯盒的定位销与销套之间宜采用()配合。
A、过渡
B、过盈
C、间隙