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【简答题】
X射线有哪些基本性质?这些基本性质在X射线的应用上各有何意义?
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反馈参考答案：
举一反三
【单选题】Where is Mr. Baker's room?
A.
On the next floor.
B.
Next door.
C.
Along the corridor.
【单选题】table rules=cols ,表示()
A.
显示所有分隔线
B.
只显示组(Groups)与组之间的分隔线
C.
只显示行与行之间的分隔线
D.
只显示列与列之间的分隔线
【单选题】〈table rules=cols〉,表示(___)
A.
显示所有分隔线
B.
只显示组(groups)与组之间的分隔线
C.
只显示行与行之间的分隔线
D.
只显示列与列之间的分隔线
【单选题】What’s Mr. Baker’s advice?
A.
Stay at home.
B.
Go to see the doctor.
C.
Take some medicine.
【简答题】简述助跑助跑两种加速方式?
【单选题】Jimmy couldn‘t write down Mr. Baker‘s name because__________. 查看材料
A.
he had no pen or paper
B.
he couldn't read or write
C.
he had to look after the baby
D.
he had to play with his brother
【单选题】听力原文：W: Mr. Baker, do help yourself to some more vegetables. M: It's a wonderful dinner, but if I eat another bite, I will burst. What will Mr. Baker do?
A.
Help to prepare vegetables.
B.
Take some more vegetables.
C.
Eat more.
D.
Avoid taking any more.
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