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【单选题】
地物和超折射是固定目标反射电磁波现象，而气象是云雨滴对电磁波的后向散射，雨滴的不规则运动会使呈现闪烁和脉动现象，因此从频谱特性上看（）是正确的。A.
地物和超折射杂波和气象的频谱特性相同
B.
地物和超折射杂波频带宽且分布在高频段，而气象频带窄且分布在低频段
C.
地物和超折射杂波频带窄且分布在低频段，而气象频带宽且分布在高频段
D.
不能判断
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举一反三
【单选题】How much did electronic goods consumption drop?
A.
$1 billion.
B.
$13. 4 billion.
C.
$14. 8 billion.
D.
$9 billion.
【单选题】What was Davy?
A.
Davy was a teacher.
B.
Davy was a boy.
C.
Davy was a student.
D.
Davy was 12 years old.
【单选题】—How did the interview with the manager go?
A.
_______ He seemed interested in my experience, but he didn't ask any questions about it.
B.
Perfect!
C.
I’m not sure.
D.
That’s right.
E.
Never mind.
【单选题】下述程序的运行结果是 (). For m=3 T0 1 Step -1 x$=String$(m,"#") Print x$ Next m
A.
1# 2# 3#
B.
### ## #
C.
# ## ###
D.
3# 2# 1#
【单选题】How did Davy make money to buy new clothes?
A.
He collected flowers in the school and smell them.
B.
He collected flowers in the fields and sold them to make money.
C.
He collected flowers in the fields and give them to his mother.
D.
He collected flowers in the school and sold them to his teacher.
【单选题】下述程序的运行结果是 For m=3 Tol Step-1 x$=String$(m，'#') Print x$ Next
A.
1# 2# 3#
B.
### ## #
C.
# ## ###
D.
3# 2# 1#
【简答题】How did Davy influence Mary Shelly?
【多选题】下列各项中（ ）应当通过“管理费用”账户核算。
A.
库存存货发生的定额内损耗
B.
在推广本企业产品的活动中发生的业务招待费
C.
企业行政管理部门的折旧费用
D.
专设销售机构人员的工资
【单选题】委托其他纳税人代销货物，为收到代销单位的代销清单或者收到全部或者部分货款的当天。未收到代销清单及货款的，为发出代销货物满（ ）的当天。
A.
90天
B.
180天
C.
360天
D.
24个月
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