单项选择题

The passage focuses on ______.

A．construction and manufacturing industry in the United States
B．new technique of obtaining aluminum from poor ores
C．consumption and production of aluminum in the United States
D．the annual import of high-grade aluminum into the United States

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热门试题

单项选择题

Specific schedule revisions for which of the following facilities are listed in this announcement

A．Athletic and recreational.
B．Food and transportation.
C．Bookstore and post office.
D．Medical and audio-visual.

单项选择题

Times for movies and concerts are not listed in this announcement because ______.

A．film or concert occurs every Wednesday at 7 p. m.
B．the full list would be too long
C．films and concerts cannot be announced publicly
D．the full list is not ready yet