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【判断题】
凸顶活塞常用于二冲程汽油机。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Does the nutritive blood flow to the alveolar structures?
【单选题】Irradiated food ___.
A.
certainly loses its nutritive value
B.
maintains its nutritive value no different from the nonirradiated
C.
keeps its nutritive value better than canned food
D.
is recommended as the best of all preserved foods
【单选题】A mature seed consists of the seed coat, nutritive tissue, and ____________.
A.
pollen grain
B.
fruit
C.
integument
D.
embryo
E.
all of these
【简答题】Does the nutritive blood flow to the alveolar structures?
【判断题】Food nutritive fortifier refers to the natural or artificial nutrients and other nutrients added to food for the purpose of increasing its nutritional content (value).
A.
正确
B.
错误
【单选题】电子控制柴油机的传感器为______提供发动机的当前工况信息,在对传感器的信号进行分析以后,根据预定的控制策略向执行器发出控制信号。
A.
速度传感器
B.
负荷传感器
C.
电控单元
D.
执行单元
【简答题】营养物质 nutritive material
【单选题】I like eating meat and vegetables because they are very nutritive .
A.
有营养的
B.
绿色的
C.
美味的
D.
健康的
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