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【简答题】
FIR滤波器的第一类线性相位条件为______，若在该条件下设计一个FIR高通滤波器，则N的取值应为奇数还是偶数?______。
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皮皮学刷刷变学霸
举一反三
【单选题】I felt _____ during those dark days.
A.
hopeful
B.
relaxing
C.
hopelessly
D.
hopeless
【单选题】I felt uncomfortable there was a long silence during the meal.
A.
and
B.
but
C.
because
D.
so
【单选题】I felt very _______ during my first hours in the country
A.
alien
B.
foreig n
C.
vague
D.
queer
【单选题】I visited quite a few relations and felt _____ tired during the Spring Festival. [ ]
A.
a bit of
B.
a lot of
C.
a bit
D.
a few
【单选题】I felt uncomfortable _________ there was a long silence during the meal.
A.
and
B.
because
C.
but
D.
so
相关题目：
【单选题】I felt very _______ during my first hours in the country
A.
alien
B.
foreig n
C.
vague
D.
queer