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【单选题】
A market economy encourages innovation because:A.
state ownership of enterprises reduces risks of innovation.
B.
economic freedom leads to greater incentives for innovation.
C.
government-owned and funded research centers become hubs of innovation.
D.
the prices of goods and services, including new products, are fixed by government.
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【简答题】对于一个放大电路来说,一般希望其输入电阻 _____, 以减轻信号源的负担;对于一个放大电路来说,一般希望其输出电阻 _____, 以增大带负载的能力。
【多选题】Listen to the excerpt from Listening 2. Choose the phrases Tom uses.
A.
I didn’t catch that.
B.
Could you say that again, please?
C.
Could you repeat that?
D.
Do you mean ... ?
【单选题】Choose the correct words or phrases to complete the sentences. I would have told him the answer ____, but I was so busy then.
A.
was it to be possible
B.
had it been possible
C.
would it have been possible
D.
did it be possible
【多选题】Watch the video. Choose the phrases you hear.
A.
put your mind to
B.
just go for it
C.
totally awesome
D.
give new meaning
E.
can't do it
F.
childhood dream
G.
revs up groups
H.
blown away
I.
a man with a vision
J.
peak performance
【多选题】Watch the video. Choose the phrases you hear.
A.
children
B.
adults
C.
winter
D.
summer
E.
many vacations
F.
year round
G.
cities
H.
farms
I.
parents
J.
educators
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