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【单选题】
关于矿物的内部结构和形态叙述错误的是A.
绝大多数矿物是体，绝大多数矿物由于缺少生长空间，许多个晶体同时生长，结果互相干扰，不能形成良好的几何外形。
B.
凡内部质点呈不规则排列的物体都是质体，如天然沥青、火山玻璃、橄榄石、云母等。
C.
晶体形态多种多样，但基本可分成两类，一类是由同形等大的晶面组成的晶体，称为，一类是（六面体和八面体的）。
D.
在相同条件下形成的同种晶体经常具有的形态，称为结晶习性。如云母、石墨等常形成板状、片状，既晶体沿2个方向特别发育，称二向延伸性 。
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举一反三
【单选题】Carolyn Forte gives us time-saving tips on all of the following EXCEPT
A.
doing shopping.
B.
traveling by air.
C.
making phone calls.
D.
putting things in order.
【单选题】---Then see you on New Year’s Day. --- So long! And_____!
A.
at best
B.
all the best
C.
all the time
D.
all the same
【单选题】A SOLAS passenger ship safety certificate is required on all ______.
A.
T-Boats carrying more than 49 passengers for hire
B.
T-Boats that carry more than 12 passengers on an international voyage
C.
T-Boats carrying more than 150 passengers for hire
D.
large excursion vessels on lakes，bays，sounds，and river routes
【简答题】什么叫黄疸?黄疸按病因学分为哪几类?
【单选题】Independence Day In 1767, England placed a tax on all tea used by the American colonist. The colonists protested 'taxation without representation' and refused to allow the tea to be unloaded. In 1773,...
A.
1767.
B.
1776.
C.
1777.
D.
1779.
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