They carried passengers, but not cargo．,They were large-找考题网

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A．They carried passengers, but not cargo.
B．They were large, but surprisingly fast.
C．They were the first successful steam-powered ships.
D．They were more reliable than other ships of the 1860’s.

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A．A fuel that burns cleanly.B．An oil additive that helps cool engines.C．A material from which filters are made.D．An insulating material sprayed on engine parts.

A．A fuel that burns cleanly.
B．An oil additive that helps cool engines.
C．A material from which filters are made.
D．An insulating material sprayed on engine parts.

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