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【单选题】
以下哪项不属于老年人循环系统退化的表现( )A.
心脏纤维组织增多，脂褐素沉积心肌线粒体中的酶的活性降低
B.
心肌兴奋性.传导性和收缩性增强，心输出量增加
C.
动脉硬化逐渐加重，周围血管阻力增加.冠状动脉粥样硬化
D.
血压有随增龄升高趋势，调节血压能力下降
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举一反三
【单选题】What is the finding of Howard Friedmans research?
A.
The harder you work, the bigger your fortune will be.
B.
The earlier you retire, the healthier you will be.
C.
Elderly people have to slow down to live longer.
D.
Working at an advanced age lengthens peoples life.
【简答题】What if I tried that much harder?
【简答题】尊重法律权威,既要尊重一般法律的权威,更要尊重( )的权威。
【单选题】'________ you've made! But you should work still harder,' the teacher said to the boy. [ ]
A.
What a big mistake
B.
How big mistakes
C.
What great progress
D.
How great progress
【单选题】“ ____________ you’ve made! But you should still work harder,” the teacher said to the boy.
A.
What great progress
B.
How a big mistake
C.
What a big mistake
D.
How great progress
【单选题】What happened as a result of the transition from wood to coal?
A.
People found it harder to get a job.
B.
People had to live near a source of energy.
C.
A lot of wood was shipped to faraway places.
D.
Industry developed and people' s living standard went up.
【单选题】What does Brian Greene imply by saying '... it would be a lot harder for him to be heard' (Linel-2, Para. 9) ?
A.
People have to compete in order to get their papers published.
B.
It is hard for a scientist to have his papers published today.
C.
Papers like Einstein's would unlikely get published today.
D.
Nobody will read papers on apparently ridiculous theories.
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