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【多选题】
钾元素是人体必需元素和常量元素之一,关于钾元素与人体健康的说法正确的有:A.
钾离子具有调节细胞和体液酸碱平衡、参与细胞内糖和蛋白质的代谢、维持神经健康、心跳规律正常等生理功能。
B.
钾元素在人体中通常以钾离子的形式存在。
C.
一般而言，身体健康的人，会自动将多余的钾排出体外，所以任何人都无序担心钾的过量摄入。
D.
人体钾缺乏可引起心跳不规律和加速、心电图异常、肌肉衰弱和烦躁，最后导致心跳停止。
E.
在乳制品、水果、蔬菜、瘦肉、内脏、香蕉、葡萄干中都含有丰富的钾
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【简答题】So much has been published on all kinds of subjects that even a specialist who devoted all his time to reading could not keep up with it.(译成无主语)
【单选题】The reason for the introduction of computers in schools is that ______.
A.
in future, all teaching will be done with computers
B.
computer programme will have better jobs in future
C.
large numbers of people will have to be trained as computer programmers
D.
people will need to understand them to obtain information in their work
【判断题】7-263.在正规西餐宴会上,酒水和菜肴的搭配是固定的。进餐时的佐餐酒,一般讲究“白酒配红肉,红酒配白肉”,吃牛排、猪排等颜色浓重的食物饮用红葡萄酒;吃鱼、海鲜、鸡等颜色浅淡的食物饮用白葡萄酒。选择一项:
A.
正确
B.
错误
【单选题】____ excited all Chinese and even all Asians most in the Athens 2004 Olympics was ____Liu Xiang won the gold medal of the men's 110m hurdles by clocking 12.91 seconds to equal the world record.
A.
What; which
B.
What; that
C.
Which; what
D.
Which; that
【简答题】A．not B．all too C．yet D．even
【单选题】Even with the new development in research， only a tiny ________ of all tests are done without using animals.
A.
variety
B.
amount
C.
plenty
D.
proportion
【单选题】(As is known) to (all), sometimes it is very difficult (to tell) the difference between technical English (from everyday English).
A.
As is known
B.
all
C.
to tell
D.
from everyday English
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