【单选题】After a quarrel, the couple finally settled down _____ their kid's future education. [ ]
【单选题】某企业购入丙材料,增值税专用发票上注明货款 20000 元,增值税 3400 元,发生包装费,运杂费共计 300 元,丙材料的采购成本为
【多选题】X、Y、Z是原子序数依次增大且属于不同周期的三种常见短周期元素,三种元素相互之间可以形成1︰1型的化合物M、N、R,常温下M、N为固体,R为液体。M、N遇到水都能产生气体,而且产生的气体相互可以化合,下列说法正确的是
【单选题】What do the couple decide to do finally?
A.
Go and see a horror film.
B.
Stay at home and watch an Ice Bucket Challenge on TV.
C.
Go to a movie in the neighborhood
D.
Go downtown next Friday.
【单选题】某企业购入丙材料,增值税专用发票上注明货款 20000元,增值税3400元,发生运杂费300元,则丙材料的采购成本为( )。
【单选题】短周期元素X、Y、Z、W的原子序数依次增大,其中Y、Z原子的核外电子数之和与X、W原子的核外电子数之和相等,Z单质可以用来冶炼其它熔点较高的金属,X和W间可形成一种能产生酸雨的化合物,则下列说法不正确的是
B.
X与Y可形成既含离子键又含非极性共价键的化合物
D.
X形成单核阴离子的核外电子数与Y、Z、W原子的核外内层电子数相同
【单选题】Why did the young couple finally decide to place an order?
A.
They were touched the owner's hospitality.
B.
They wanted to help the owner with his family business.
C.
They thought the owner was honest and sincere.
D.
They realised how important after-sale services were.
【单选题】下列说法不正确的是( )
A.
活泼金属原子与活泼非金属原子之间形成的化学键一般为离子键
【单选题】Q10: What do the couple decide to do finally?
A.
Go and see a horror film.
B.
Stay at home and watch an Ice Bucket Challenge on TV.
C.
Go to a movie in the neighborhood.
D.
Go downtown next Friday.