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【简答题】
两根相差0.28nm的谱线，在一光谱仪的出射狭缝焦面上分开的距离为0.16mm，问该仪器单色器的倒线色散率为多少?如果出射狭缝宽为0.15mm，问单色器通带宽度为多少?
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举一反三
【简答题】电池的发明人是 。
【单选题】The Greek ship drifted and struck the portside of a Chinese ship, which（）the bulwalk and stanchions.
A.
caused damage to
B.
had collision with
C.
was damaging
D.
was causing damage to
【单选题】关于心底的描述，哪一项是正确的
A.
由左、右心房和肺动脉及主动脉组成
B.
朝向右后上方，大部分由左心房及小部分右心房组成
C.
由左、右心室组成
D.
由左心室组成
E.
心底部与大血管相连，位置活动度大
【单选题】The Greek ship drifted and the portside of a Chinese ship, which ____ the bull walk and Stanchions.
A.
had collision with
B.
was damaging
C.
w as causing damage to
D.
caused damage to
【单选题】关于心底的描述,哪一项正确
A.
由左、右心房和肺动脉及主动脉组成
B.
朝向右后上方,大部分由左心房及小部分右心房组成
C.
由左右心室组成
D.
由左心室组成
E.
心底部与大血管相连,位置活动度大
【单选题】Dr. Dorothy is ______.
A.
an environmental program manager of Greece
B.
a Greek official in charge of the construction
C.
a scholar opposing the construction of the sports complex
D.
a scholar in support of the Construction of the sports complex
【简答题】胡椒与肉豆蔻的混合物 的商品编码为( )
【单选题】Dr. Dorothy is ______.
A.
an environmental program manager of Greece
B.
a Greek official in charge of the construction
C.
a scholar opposing the construction of the sports complex
D.
a scholar in support of the construction of the sports complex
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