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【判断题】
链传动中张紧轮应设置在A.
正确
B.
错误
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【简答题】农技人员设计并建造了日光温室大棚，请回答： （1）大棚内同种植物的总和称为一个______． （2）沼气池中微生物发酵可将有机物分解为无机物．植物通过______（填器官名称）吸收无机盐． （3）大棚内的植物属于生态系统组成成分中的______． （4）农技人员研究温度对某种蔬菜产量的影响，将实验结果绘制成如图曲线．图中面积S 1 、S 2 、S 3 、S 4 可表示某部分有机物的量．当温度从t上...
【单选题】What does "this kind of entrepreneurial approach ' in the last paragraph mean?
A.
Prof. Cui, who started the company, is a professor-turned entrepreneur.
B.
Prof. Cui is bold in his submarine design.
C.
Prof. Cui doesn't rely on government funding. Instead he runs a for-profit business
D.
Prof. Cui is the first to offer his ship for tourists.
【单选题】"There are so many ways for charities to approach you today..." What does the word "approach" mean?
A.
to start dealing with a problem
B.
to come near someone in distance or time
C.
to ask somebody for something
D.
to come close to something in amount
【简答题】It is said in the video that "recent research showed that people who learned a second language in hood exhibit less emotional bias and a more retional approach when confronting problems in the se...
【单选题】关于磨牙的描述，正确的是（）。
A.
上颌磨牙的牙冠倾向颊侧
B.
下颌磨牙的牙冠倾向舌侧
C.
下颌第一磨胎面可见斜嵴
D.
上颌第二磨胎面发育沟呈“田”字形
E.
上颌第一磨胎面发育沟呈倒立“大”字形
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