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【简答题】
冲激函数【图片】是 （奇/偶）函数，冲击偶函数【图片】是 （奇/偶）函数。（答案用“，”逗号隔开）
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皮皮学刷刷变学霸
举一反三
【单选题】—What’s a quarter and a half, do you know? —Yes, it’s __________.
A.
two-sixths
B.
three quarters
C.
three-fourth
D.
three-sixths
【单选题】It's over ______ from Shijiazhuang to Beijing. [ ]
A.
three hours' drive
B.
three hour's drive
C.
three hour drive
【单选题】-- What's one-fourth and a half, do you know?-- Yes, it's ______.
A.
three-fourths
B.
three-fourth
C.
three fours
【单选题】What time is it now?
A.
It's three fifty.
B.
It's three fifty-five.
C.
It's four fif.
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