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【单选题】
固态物质是否为晶体，关键取决于它是否具有（）A.
特殊的化学成分
B.
按一定的几何规律排列的原子结构
C.
规则的外形
D.
是否固溶
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举一反三
【单选题】On the following occasions, a seat becomes vacant during the lifetime of a Parliament:
A.
if an MP dies
B.
if an MP is confered a peerage
C.
if an MP resigns
D.
all the above
【单选题】During ( ),the seat must be returned to the upright position.
A.
take- off and taxing
B.
taxing and landing
C.
take-off and landing
D.
take-off, taxing and landing
【简答题】conseguir (ellos)________________
【单选题】Please keep the seat belt fastened during the following stages EXCEPT ____________.
A.
taxiing
B.
cruising
C.
turbulence
D.
take-off and landing
【判断题】I cannot take the seat after his during the exam. I got a poor grade last time when I sat behind him.
A.
正确
B.
错误
【单选题】Please keep the seat belt fastened during the following stages EXCEPT ____________.
A.
cruising
B.
taxiing
C.
take-off and landing
D.
turbulence
【单选题】During ( ),the seat must be returned to the upright position.
A.
take- off and taxing
B.
taxing and landing
C.
take-off, taxing and landing
D.
take-off and landing
【单选题】¿Qué condiciones ofrecen las vacaciones en la playa?
A.
los menores de quince años solo pagan la comida .
B.
los niños tienen una habitación doble para ellos
C.
hay una fecha límite para conseguir el descuento
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