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【单选题】
影响X线强度分布的因素是A.
靶面倾角
B.
管电流大小
C.
辐射时间的长短
D.
阳极的类型(固定或旋转)
E.
管内阳极与阴极间的距离
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举一反三
【单选题】A room with two twin beds. May be occupied by one or more people.
A.
Single Room
B.
Twin Room
C.
Studio
D.
King Room
【单选题】下列四个量子数正确的组合正确的是( )
A.
n=3, l=-3, m=0, ms=0;
B.
n=4, l=3, m=-1, ms=+1/2;
C.
n=2, l=0, m=-1, ms=-1/2;
D.
n=3, l=2, m=2, ms=+1/2;
【单选题】听力原文：Rachel: What enormous twin beds! And look at those huge pillows on them! Let me try the beds. Oh, the mattress feels too soft for my liking! Lin: Look at the toiletries in the bathroom — shampoo,...
A.
In a hotel.
B.
In a restaurant.
C.
In a hospital.
D.
In a shop.
【简答题】只有( )才是通往理想彼岸的桥梁。
【单选题】听力原文：Rachel: What enormous twin beds! And look at those huge pillows on them! Let me try the beds. Oh, the mattress feels too soft for my liking! Lin: Look at the toiletries in the bathroom — shampoo,...
A.
In a hotel.
B.
In a restaurant.
C.
In a hospital.
D.
In a shop.
【简答题】TWB ------twin beds with bathroom.______________________
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