氟铝酸盐水泥
参考答案：
以铝质原料、石灰质原料、萤石（或再加石膏）经适当配合，煅烧成以氟铝酸钙起主导作用的熟料，再与石膏一起磨细而制得的水泥。
The man as well as his horse ________ crossed the river ________ from Tokyo. [ ]
A. which; come
B. that; comes
C. who; came
D. who; come
If one side fails to observe the contract, the other side( )cancel it.
A．be entitled to
B．entitled to
C．being entitled to
D．is entitled to
