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【单选题】
下列不属于无人机的优点的是______。A.
用途广泛，成本低，效费比好
B.
无机上人员伤亡风险
C.
系统组成简单，设计方便
D.
生存能力强，机动性能好，使用方便
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反馈参考答案：
举一反三
【单选题】In a broad sense, an index is .
A.
a dynamic relative numbers
B.
a static relative numbers
C.
a relative number of changes in quantity of social and economic phenomena
D.
a relative number of price changes
【简答题】Imagine you are Sue, and your partner is Ken. Your English teacher, Linda has been in hospital. Now she is fully recovered and will leave the hospital today. You want to meet her there. You ask your f...
【单选题】General Eisenhower felt that the broad German motorway made more sense than the twolane highways of America.
A.
Y
B.
N
C.
NG
【简答题】Suppose you hear that your friend Ken is ill Write him a letter to 1) comfort him, and 2) offer your help with his missed lessons. You should write about 100 words. Do not use your own name. Use 'Li M...
【判断题】In a broad sense, transportation is defined as the movement of freight and passengers from one location to another.()
A.
正确
B.
错误
【简答题】Broad sense heritability
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