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【简答题】
A: Hey, what's your plan for this Sunday? B: How about 1 (去野餐) ? The weather forcast says it will be sunny this Sunday. C: 2 (好主意) . Where shall we go? A: I think the East Lake is a good choice. It's beautiful and quiet. B: OK. Then how can we get there? By bike? Take a bus? C: We'd better take a bus. A: So 3 (我们都同意) . B: we have to prepare some food. C: I'll ask my mum to make some hamburgers. A: I agree. I'll bring some drinks, green tea, black tea,juice or cola? B: What about bringing 4 (一副牌) ? C: Sounds like a good idea. A: Then I'll bring some fruit. Oh, don't forget to bring some plastic bags. We can't 5 (扔垃圾)everywhere. B: No problem.
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【单选题】风光摄影中最常用的构图形式是()。
A.
水平线构图
B.
垂直线构图
C.
对角线构图
D.
三分法构图
【简答题】Part B (10 points) (41)Orientation Yellowstone is much more than hot ground and gushing steam. Located astride the Continental Divide, most of the park occupies a high plateau surrounded by mountains ...
【单选题】有 220V 、 25W 的电烙铁,其电源控制电路如图所示,烙铁温度最高的是
A.
S1、S2均接通
B.
S1断开,S2接通
C.
S1接通,S2断开
D.
S1、S2均断开
【简答题】一个功率为45W的电烙铁,额定电压是220/110V.其电阻丝有中心如图(a)所示,当电源是220V时,用A、B两点接电源,当电源是110V时,则将电阻丝并联后接电源,如图(b)所示,试问:
【简答题】一般情况下,大样本是指样本容量大于 的样本
【多选题】Sketch out the steps of the investment-casting process?
A.
Produce wax patterns:
B.
Apply investment materials
C.
Dewax:
D.
Burnout preheating
E.
Pouring:
【简答题】一个功率为45 W的电烙铁,额定电压是220/110V.其电阻丝有中心如图(a)所示.当电源是220V时,用A、B两点接电源;当电源是110V时,则将电阻丝并联后接电源,如图(b)所示.试问:
【简答题】Sketch out the steps of the investment-casting (lost-wax) process?
【单选题】一个功率为45w的电烙铁,额定电压是220/110V,其电阻丝有中心抽头[如图a所示],当电源是220V时,用A、B两点接电源;当电源是110V时,则将电阻丝并联后接电源[如图b所示]在这两种接法中:()
A.
通过电阻丝的电流相同,电源供应的电流相同
B.
通过电阻丝的电流相同,电源供应的电流不相同
C.
通过电阻丝的电流不相同,电源供应的电流不相同
D.
通过电阻丝的电流不相同,电源供应的电流相同
【判断题】Is the Great Canyons (also named The Grand Canyons) located in the U.S.A.?
A.
正确
B.
错误
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