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【单选题】
I don't have money or time; ________， I can't accompany you to the Great Wall. [ ]A.
in a word
B.
in other words
C.
similarly
D.
in this way
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皮皮学刷刷变学霸
举一反三
【简答题】试分别用三种方法编程实现数据互换：R0←→50H。(设当前工作寄存区为0区)
【单选题】I feel so grateful for your selfless help,____ I would not have become _____ I am today. [ ]
A.
with which; which
B.
without which ; who
C.
without which ; what
D.
with which; that
【简答题】已知某Z变换的收敛域为圆外部分，则该Z变换对应的序列一定为 序列。