大型技术相机是指能拍摄()尺寸胶片的照相机。
A.4×5英寸
B.5×7英寸
C.24×36mm
D.6×6cm
E.6×7cm
参考答案:A, B, C, E
(1) ________What are the boys fighting about with each other?
(2)______People often have to fight for their liberty.
(3)________He fought against cancer and lived to be eighty.
(4)_______She fought back her tears and went on writing.
(5)________He fought with his classmate yesterday.
(6)________England fought with France against Germany in the First World War.
WK-20型挖掘机对环境温度有什么要求?