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【单选题】Passage Four Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things , astronauts on the Project ...
A.
was an unusual problem among astronauts
B.
was what puzzled the early scientists
C.
caused new problems in space flights
D.
drew the attention of the general public
【单选题】Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things , astronauts on the Project Mercury ate foo...
A.
there is enough space to store enough foods for astronauts
B.
there is a selection of flavored foods from a dozen countries
C.
astronauts in general prefer foods from their own countries
D.
astronauts’ need to eat their favorite foods can’t always be met
【单选题】Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things , astronauts on the Project Mercury ate foo...
A.
was an unusual problem among astronauts
B.
was what puzzled the early scientists
C.
caused new problems in space flights
D.
drew the attention of the general public
【单选题】Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things , astronauts on the Project Mercury ate foo...
A.
the variety of food options in space
B.
the dietary need of astronauts in space
C.
the problems of living in the space station
D.
the improvement of food offered in space
相关题目：
【判断题】金枪鱼肉色为红色，属于红肉。
A.
对
B.
错
【单选题】金枪鱼俗称“青干”，其英文名称是（）
A.
cod fish
B.
flat fish
C.
tuna
D.
trout
【判断题】蓝鳍金枪鱼是美国制造的潜水器
A.
正确
B.
错误
【单选题】金枪鱼的细胞色素C氨基酸的组成与人类细胞色素C的差别有多少？（）
A.
0.0
B.
11.0
C.
21.0
D.
45.0
【单选题】金枪鱼钓渔业大多数属于（）。
A.
漂流延绳钓
B.
曳绳钓
C.
垂钓
【判断题】饵料生物资源的状况不影响金枪鱼的分布和洄游。
A.
正确
B.
错误
【单选题】食用不新鲜的金枪鱼易发生食物中毒，其有毒成分是（）。
A.
组氨酸
B.
肉毒毒素
C.
肠毒素
D.
龙葵素
E.
组胺
【单选题】金枪鱼的肉色是（）
A.
橙黄色
B.
暗红色
C.
粉红色
D.
淡白色
【单选题】Passage Four Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things , astronauts on the Project ...
A.
was an unusual problem among astronauts
B.
was what puzzled the early scientists
C.
caused new problems in space flights
D.
drew the attention of the general public
【单选题】Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things , astronauts on the Project Mercury ate foo...
A.
there is enough space to store enough foods for astronauts
B.
there is a selection of flavored foods from a dozen countries
C.
astronauts in general prefer foods from their own countries
D.
astronauts’ need to eat their favorite foods can’t always be met
【单选题】Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things , astronauts on the Project Mercury ate foo...
A.
was an unusual problem among astronauts
B.
was what puzzled the early scientists
C.
caused new problems in space flights
D.
drew the attention of the general public
【单选题】Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things , astronauts on the Project Mercury ate foo...
A.
the variety of food options in space
B.
the dietary need of astronauts in space
C.
the problems of living in the space station
D.
the improvement of food offered in space