【单选题】After a quarrel, the couple finally settled down _____ their kid's future education. [ ]
【单选题】The couple finally bought the house they wanted, for they______enough money.
【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】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.