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【多选题】
SDH设备常见的网元类型有（）。A.
TM
B.
ADM
C.
OLA
D.
REG
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反馈参考答案：
举一反三
【单选题】典型嗜铬细胞瘤在:()。
A.
T1WI 低信号，T2WI中等高信号
B.
T1WI 高信号，T2WI低信号
C.
T1WI 低信号，T2WI中等信号
D.
T1WI和T2WI均为高信号
E.
T1WI和T2WI均为低信号
【单选题】You've been so nice. may I tip you?
A.
Whatever.
B.
That's very kind of you, but it isn't necessary.
C.
Wow! Please do. I need the money!
【单选题】听力原文：M: Hi, Jane...Say, are you OK? You've looking a bit tired. W: Oh, I am. It's my neighbors. M: Oh, so they're acting up again. Huh? W: Unfortunately, yes, they are. M: Loud music? W: Not exactly. ...
A.
Her colleagues.
B.
Her neighbors.
C.
Her friends.
D.
Her schoolmates.
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