影响切削力的因素

下列关于巨幼细胞贫血病因的描述中，错误的是（）

A.叶酸缺乏引起者最多见

B.对食物加热、煮沸过度可造成叶酸缺乏

C.人体中叶酸、维生素B₁₂全部由食物供给

D.人体内贮存的叶酸可供人体使用3～6年

E.恶性贫血是由于内因子缺乏导致维生素B₁₂不能被吸收所致

对人类来说，森林既是重要的自然资源，又是不可替代的环境资源。亚马孙热带雨林是全球面积最大的雨林，发挥着巨大的生态效益，但近些年却遭到严重破坏。读图2回答3~4题。

小题1:亚马孙热带雨林被称为“地球之肺”是因为

A．能够吸纳和调节大量降水

B．深刻影响着地球大气中的碳氧平衡

C．促进全球水循环，调节全球水平衡

D．能涵养水源，净化水质小题2:热带雨林对当地水循环的影响主要表现为

A．为降水提供了50%的水汽来源，是当地水循环的重要环节

B．大量水汽被带离了雨林地区，减少了当地的降水

C．水循环水汽主要来自海洋，跟热带雨林没有关系

D．热带雨林能储存大量的水分，会减少当地的水循环

药材补骨脂的来源是（）

A.木兰科植物的干燥成熟果实

B.蔷薇科植物的干燥近成熟果实

C.蔷薇科植物的干燥成熟果实

D.豆科植物的干燥成熟果实

E.木兰科植物的干燥成熟种子

The Bible is the great work of the religious literature and was in process of formation for about twelve hundred years.

The Bible is composed of (1) , legend, biography, genealogies, ethics, law, proverbial wisdom, sermons, prophesy, lyric poetry, hymns and theology. It is not only (2) a book but a (3) of books.

The Bible (4) two major (5) , the Old Testament and the NewTestament. The Old Testament was written originally almost entirely (6) Hebrew with a little Aramaic, from the eleventh to the second century BC. It is the national (7) literature of the people of Israel. The New Testament was written in Greek from about 40 AD to 150. It 8 the earliest documents (9) the life, teaching, crucifixion and resurrection of Jesus and the establishment of the (10) church. The (11) work is from the first book Genesis, to the last,Revelations.

The (12) and richness of the Bible (13) literature (14) the Old Testament are unparalleled. In the literary (15) , poetry, The Bible is 16 .

The Bible is an assemblage of literature. It is in a unique (17) among the world’s books (18) the richness of its (19) and spiritual values. It can be called the (20) of books.

5（）

A.diversion

B.distinction

C.divisions

D.discrepancy

一列横波沿x轴正方向传播，它的波动表达式为y=0.02cosπ（5x-200t），则下列说明正确的是（）。

（1）其振幅为0.02m；

（2）频率为100Hz；

（3）波速为40m·s^-1；

（4）波沿x轴负向传播。

A.(1)、(2)、(3)、(4)

B.(1)、(2)、(3)

C.(2)、(3)、(4)

D.(1)、(2)、(4)