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【简答题】
物质由原子组成，每个原子均由原子核及电子组成，电子由于受原子核的吸引力沿一定的轨道绕核旋转。核外的电子因距离核远近不同而具有不同的壳层。每个可能轨道上的电子都具有一定的能量，且电子在各个轨道上具有的能量是不连续的。电子的能量是A、动能 B、势能 C、动能与势能之和 D、正值 E、零 表征原子的能量状态的称为A、原子能级 B、轨道半径 C、结合能 D、电离能 E、激发能
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皮皮学刷刷变学霸
举一反三
【单选题】An organization that grows using ________ focuses on its primary line of business and increases the number of products offered or markets served in this primary business.
A.
concentration
B.
horizontal integration
C.
vertical integration
D.
diversification
【简答题】Crises are an inevitable part of management, and the larger the business grows, the bigger the crises seem to become.
【单选题】It is ________ that Jim will take over his father's business when he grows up.
A.
sure
B.
surely
C.
certain
D.
certainly
【简答题】As your business grows,you may need(employ)_______workers with different skills.
【单选题】某企业选择仓库设置地点时,使仓库尽可能接近运量大的网点,从而使较大运量的商品走相对较短的路程。这种方法被称为()。
A.
经纪人
B.
商人批发商
C.
代理商
D.
制造商代表
【单选题】下列哪种情况应属于互见（）。 ①能见度不良时，两船驶近至相互以视觉看见时； ②由于航行灯的发光强度不一样，使两船不能同时相互看到时； ③低层雾遮盖了一船的驾驶台，而未遮盖其桅灯时； ④用望远镜看到他船时。
A.
①
B.
①③④
C.
①④
D.
③④
【简答题】Business grows and expands more quickly with technological advancement in production process and scale .
【单选题】Susie grows corn in her backyard garden to feed her family. The corn she grows is not counted in GDP because
A.
it was not produced for the marketplace.
B.
it is an intermediate good which Susie will process further.
C.
the corn has no value.
D.
it reduces the amount of corn she will buy at the store.
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