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【单选题】
水泥搅拌土桩地基中对水泥的要求为A.
32.5级以上新鲜矿渣硅酸盐水泥。
B.
42.5级以上新鲜普通硅酸盐水泥。
C.
32.5级以上新鲜普通硅酸盐水泥。
D.
32.5级以上新鲜火山灰硅酸盐水泥。
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【简答题】听力原文：By the year 2000, the population of the developing world living in areas had risen to about 46% and it is estimated to reach more than 57% by the year 2025. (55)
【单选题】The passage mainly tells us that ______.
A.
the increase of human population leads to more destruction of the natural world
B.
the decrease of animal population results from the dwindling biodiversity in the natural world
C.
the planet's biodiversity is also related to the number of households
D.
the planet's biodiversity relies on the balanced increase of larger and smaller households
【单选题】The population growth rate in the US is______.
A.
higher than that in India
B.
lower than that in Mexico
C.
higher than that in Indonesia
D.
lower than that in South America
【单选题】The US government will take measures to reduce the overall population risk.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】三、下列空缺处应填的词语是( ) (1)“......唔......荞麦面......一碗......可以吗?”那女人 地问。 (2)热腾腾香喷喷的荞麦面放到桌上,母子三人立刻围着这碗面, 地吃了起来。 (3)从九点半开始,老板和老板娘虽然谁都没说什么,但都显得有些 。 (4)老板娘把他们领到二号桌, 地将桌上那块“预约席”的牌子藏了起来。
A.
．①怯生生 ②头碰头 ③心神不定 ④若无其事
B.
．①怯生生 ②头碰头 ③六神无主 ④若无其事
C.
．①小心翼翼 ②兴高采烈 ③六神无主 ④煞有介事
D.
．①小心翼翼 ②兴高采烈 ③心神不定 ④煞有介事
【单选题】The US population in the 1970s is ______ largest of the world.
A.
the first
B.
the second
C.
the third
D.
the fourth
【单选题】In the poorest nations of the world, more than half of the population ______ on farms.
A.
have lived
B.
live
C.
are living
D.
lives
【简答题】在繁殖制种期,种鸽的公母比例为____;一对种鸽正常产蛋,一窝产____枚。
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