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__________taken my advice, you__________now.
A、Ifyouhave;wouldn’tregret
B、Ifyouhad;wouldn’thaveregretted
C、Ifyouhad;wouldn’tregret
D、Youhad;wouldn’tregret
B、Ifyouhad;wouldn’thaveregretted
C、Ifyouhad;wouldn’tregret
D、Youhad;wouldn’tregret
下列试题词语中加点的字，读音全都正确的一组是
A、哺(pǔ)育对峙(zhì)面面相觑(qù)
B、模(mú)样歼(qiān)灭广袤(mào)无垠
C、场(cháng)院拓(tuò)片一暴(pù)十寒
D、答(dā)应症(zhēng)结惝(tǎng)恍迷离
B、模(mú)样歼(qiān)灭广袤(mào)无垠
C、场(cháng)院拓(tuò)片一暴(pù)十寒
D、答(dā)应症(zhēng)结惝(tǎng)恍迷离
— The manager of the factory wants to improve production a great deal, but he doesn’t spend much on technology.
— I am afraid he won ’t realize his dream. You know ________.
A、emptyvesselsmakethegreatestsound
B、youcan’teatyourcakeandhaveit
C、enoughisasgoodasafeast
D、twoheadsarebetterthanone
B、youcan’teatyourcakeandhaveit
C、enoughisasgoodasafeast
D、twoheadsarebetterthanone
时，目标函数z=x+y的最小值是（）