邮件再投的原因通常有()。
A、收件人外出
B、收件人迁移,新址待查
C、投递员邮件量大,当天投不出
D、原址查无此人,下班再问
参考答案:A, B, D
— Now that you like the computer so much, why not buy one?
— Well, I can’t afford ______ computer at present.
A.that expensive a
B.a such cheap
C.a so cheap
D.that an expensive
简述意志品质的特点。