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【简答题】
蛋白质起始消化部位______，最终消化部位和最终消化产物分别是______．参与消化的消化液有______．
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反馈参考答案：
举一反三
【单选题】My brother got fired a month ago, but he landed on his feet and found another job that paid ____ money.
A.
twice as much
B.
as much twice
C.
twice much as
D.
as twice much
【简答题】楼梯一般由楼梯段 、( )、栏杆和扶手三部分组成。
【简答题】油脂车上严禁烟火，尤其不得边工作边吸烟，油车附近（）范围内禁止吸烟。
【单选题】My brother got a job as a ________ bus driver when he left school.
A.
trainee
B.
clever
C.
friendly
D.
positive
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