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【单选题】
标准直齿圆柱齿轮的全齿高等于9 mm,则模数等于A.
2 mm
B.
4 mm
C.
3 mm
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【单选题】张某,男,50岁,诊断为结肠癌,血压160/100mmHg,中度贫血,消瘦,术前准备不必要的是
A.
纠正贫血
B.
改善营养状态
C.
检测肝功能
D.
血压降至正常
E.
血生化检查
【单选题】The tomato is the world's most popular fruit. _______ the pumpkin, botanically speaking it is a fruit, not a vegetable.
A.
Just like
B.
Just as
C.
Such as
D.
For example
【单选题】Which of the following nutritional factors makes a person look older?
A.
Eating lots of fruit and vegetables.
B.
Not eating enough protein.
C.
Eating lots of meat.
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