皮皮学，免费搜题
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搜题
【单选题】
组成计算机指令的两部分是A.
操作和字符
B.
操作码和地址码
C.
运算符和运算数
D.
运算符和运算结果
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】词汇练习和句型结构练习
【简答题】说明什么是热力学可逆过程,有哪些特点?
【单选题】It’s a pity that Andrew didn’t want to go to the conference.________ willing to go，we could have paid all his expenses.
A.
Had he been
B.
Being
C.
Was he
D.
He had been
【单选题】It’s a pity that he () such a good chance.
A.
missed
B.
misses
C.
had missed
D.
should miss