影像增强管输入屏可见光像的光亮度约为
A.0.03cd/
B.0.003cd/
C.0.3cd/
D.0.006cd/
E.0.08cd/
参考答案:B
–I have little money. Could I ______ some _______ you?
A.borrow; to
B.borrow; from
C.lend; to
D.lend; from
在Excel中,下面合法的公式是()。
A.=A2-C6
B.=D5+F7
C.=A3*A4
D.=A2@D2