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【单选题】I haven’t felt sick since you s witched my medication.>Switch means the same as in the sentence_________.
A.
The switch is down when the power is on and up when it’s off.
B.
Fifty percent of car buyers are prepared to switch brands.
C.
You can switch between windows using the mouse.
【简答题】You met your friend Sandy this morning, who doesn't look very well. Y: Morning, Sandy. ______1___ S: No. ___2_____ Y: What’s wrong with you? S: ___3_____ Y: How long have you been feeling like that? S...
【简答题】电路如图2-26所示，晶体管的β=100，r bb' =100Ω。
【单选题】– Have you heard that Tom, along with his parents, ______ to Japan? -- Really? No wonder I haven’t seen him these days.
A.
has been
B.
has gone
C.
have been
D.
have gone
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