张涛有30枚邮票,比李锐少25%,李锐有邮票多少枚?列式为[ ]
A.30÷25%
B.30÷(1-25% )
C.30×25%
答案:B
My coat _______ on the chair and my trousers _______ on the bed. [ ]
A. is; is
B. are; are
C. is; are
提供EIS显示的DU().
A.是相同的互换的
B.只有PFD1和PFD2的DU是相同的可互换
C.EFIS的DU与ECAM DU不同不能互换
D.只有ND1与ND2的DU相同可互换