题目内容

CPAP is a useful machine for people with snoring problems because it can help to ______.

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试述逮捕的适用条件和具体要求。

For this part, you are allowed thirty minutes to write a composition on the topic "The Important of Self-confidence". You should write at least 120 words, and base your composition on the outline given in Chinese below:
1. 凡事均应有信心；
2. 自信心的重要性；
3. 有了正确的态度，建立信心是可能的。

What are you advised to do if the picture is too bright？ Select______．

Why Do We Not Live Forever？
The human body is composed not of perishable
materials like wood or metal, but of living cells
that can grow and replenish themselves. However if the body's 【M1】
individual units are renewable, why do we not live forever？
Theologians explain that Adam and Eve were refused 【M2】
mortality and expelled from Eden because they disobeyed God. 【M3】
Evolutionary biologists hold that natural selection favors
genes that promote having many offsprings to those that 【M4】
might insure longer life. In their view, life span is a trade-off 【M5】
between fertility and longevity, and infinite life would be allied
with childlessness and rapid extinction.
A chance discovery that a Texas biologist has provided a 【M6】
different kind of explanation. The biologist, Dr. Lawrence
Donehower of the Baylor College of Medicine in Houston, has
found that age seems to be a necessary cost of suppressing 【M7】
cancer.
The finding concerns with an intensively studied cellular 【M8】
agent that is the body's first line of defense
against tumors. The agent is known to biologists with the 【M9】
humble name of p53-p for protein, 53 a measure of its weight.
In fact, p53 is one of most important hubs in the living cell's vast 【M10】
network of interacting components. Many circuits that monitor
different aspects of the cell's integrity report back to p53.
【M1】