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【单选题】
关于比热容下列说法中，正确的是 [ ]A.
比热容是物质的特性，与物体的质量、体积无关
B.
同温度、同质量的不同物体、比热容大的物体含热量多
C.
比热容与热量有关，某物质吸收或放出的热量越多，它的比热容就越大
D.
水的比热容为4.2×10 3 J/（kg·℃），可以理解为1kg的水温度降低1℃放出的热量为4.2×10 3 J/（kg·℃）
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【单选题】It can be inferred from the passage that the Puritans were ______.
A.
uneducated
B.
hardworking
C.
generous
D.
wealthy
【简答题】如图所示底层给排水平面图 从底层给排水平面图可以看出,图中粗虚线表示 ,空心圆圈表示 。室外南侧两个圆圈表示 。 第2号排污系统有 引向室外检查井。 a. 第一根排出管将厨房 洗涤池 的污水,排至排水 ,再沿 直接排入室外检查井。 b. 另一根排出管将卫生间的洗衣盆、地漏、坐便器和浴盆的污水通过排出横管排入立管 ,沿排出管汇入室外检查井。
【单选题】So too did a lot of the norths soldiers. One of the central themes of the political history of the twelfth century was the continual effort by the northern kingdoms to extend their control southward i...
A.
To highlight the difference between the views of various ecologists about the nature of ecological communities
B.
To illustrate why some ecologists tended to view ecological communities as highly integrated
C.
To demonstrate that one forest has a greater variety of species than the other
D.
To show how these two forests differ from others in the United States
【单选题】The central themes in Harry Potter always involve tolerance of other people and _________.
A.
reliance on community
B.
self-reliance
C.
independence
D.
altruism
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