Mr. Smith likes traveling _______; but his wife enjoys _______.
A.
by train; taking a taxi
B.
on train; by taxi
C.
by train; by taxi
D.
on train; taking a taxi
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参考答案:
举一反三
【单选题】Suppose the price of crude oil is $95 per barrel in New York and $85 per barrel in Texas, and the transaction costs for trading between the two markets are $15 per barrel. What actions should you tak...
A.
Buy oil in Texas and sell oil in NY
B.
Sell oil in Texas and buy oil in NY
C.
Buy oil in both markets and wait for higher prices