多选题When practicing with a bow and arrow, it is ______ to be aware of both the velocity and the trajectory of one’s arrows if one wishes to hit the target.AirrelevantBnecessaryCconventionalDprudentEdetrimentalFinsightful

多选题
When practicing with a bow and arrow, it is ______ to be aware of both the velocity and the trajectory of one’s arrows if one wishes to hit the target.
A

irrelevant

B

necessary

C

conventional

D

prudent

E

detrimental

F

insightful


参考解析

解析:
这句话强调射箭时要注意箭的速度和轨迹,因此空格处的词语应该起强调作用。六个选项中只有B项和D项有这个意思,因此选择B和D。句意是,“练习射箭时,要想击中目标,需要注意箭的速度和轨迹。”

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