| As people continue to grow and age, our
body systems continue to change. At a certain point in your life your body
systems will begin to weaken. Your joints may become stiff. It may become more
difficult for you to see and hear. The slow change of ageing causes our bodies
to lose some of their ability to bounce back form disease and injury. In order
to live longer, we have always tried to slow or stop this process that leads us
toward the end of our lives. Many factors contribute to your health. A well-balanced diet plays an important role. The amount and type of exercise you get is another factor. Your living environment and the amount of stress you are under is yet another. But scientists studying senescence (衰老)want to know: Why do people grow old They hope that by examining the ageing process [单项选择]Tom make up his mind to get a seat for the football match ______ it means standing in a queue all night.
A. as if B. as though C. even if D. whatever [单选题]电焊机的外壳应可靠接地或接零。接地时其接地电阻不得大于8。（）
A.正确 B.错误 C./ D./ E./ F./ [单项选择]二级普通消防站挂钩梯配备标准是（）。
A. 1架 B. 2架 C. 3架 D. 4架 [判断题]履带式起重机履带压强大，适用于道路差、行驶不畅的路面行走。
A.正确 B.错误 [填空题]计算机的存储器按照存储器的数据是否可以改写又可分为只读存储器和（）。
[单项选择]装饰立面图（）
A. 不能表明门窗高度 B. 不能表明墙面与吊顶的衔接收口方式 C. 不能装饰造型的构造方式 D. 不能表明结构墙体材料 [单项选择]民事诉讼法规定的财产保全期限一般不得超过（）。
A. 6个月 B. 1年 C. 2年 D. 3年 [单项选择]对肺炎链球菌典型临床表现叙述错误的是（）
A. 患侧胸痛 B. 寒战、高热 C. 咳嗽、咳铁锈色痰 D. 起病急骤、急性病容 E. 起病早期即有明显的肺部体征 我来回答: 提交
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