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【简答题】
系统误差和偶然误差有什么不同?在测量工作中对这两种误差应如何处理?
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举一反三
【单选题】We have replaced the broken china sets.____, we offered you a 3% discount.
A.
And also
B.
In addition
C.
More also
D.
in addition to
【单选题】What have we replaced fossil fuels with?
A.
We now use alternative forms of energy.
B.
We now use alternative forms of transport.
C.
We only have three billion cars on the road.
【单选题】下列关于食物份量的描述，不正确的是（ ）
A.
食物份量指标准化的一份食物可食部分的数量
B.
确定食物份量应首先确定代表性食物份量
C.
确定食物份量可以用于膳食指南的定量指导
D.
确定谷类食物份量，可选择面包作为代表性食物
【判断题】罗马万神庙平面为圆形,穹顶直径43.3m,顶端高度43.3m,穹顶中央开一个直径8.9m的圆洞。 穹顶的做法:先用砖沿球面砌几个大发券,然后分段浇筑混凝土,这样可防止混凝土在凝结前下滑,并避免混凝土收缩时出现裂缝,为减轻穹顶重量,越往上越薄,并在穹顶内面做六圈深的凹格,每圈28个,混凝土用浮石作骨料。
A.
正确
B.
错误
【简答题】In the 2nd version we learn that we have _____ our use of ____ ____ such as oil, gas and coal by nearly 80% over the last 50 years. We have replaced them now with a number of ______ forms of energy, s...
【简答题】强化可以改变幼儿对注意对象的选择。____
【单选题】What have we replaced fossil fuels with?
A.
We now use alternative forms of energy
B.
We now use alternative forms of transport
C.
We only have three billions cars on the road.
【单选题】We have replaced the broken china sets. __________, we offered you a 3% discount.
A.
And also
B.
More also
C.
In addition
D.
In addition to
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