A、upper and lower
B、semi-enclosed
C、left and right
D、completely enclosed
A、upper and lower
B、semi-enclosed
C、left and right
D、completely enclosed
A、flair
B、flame
C、flare
D、flash
A、English is the second most commonly used international language after Chinese.
B、English is the/an official language in almost 60 sovereign states.
C、It is mostly spoken in the United States, Canada, Australia, Ireland and New Zealand.
D、It has a history of more than 2,000 year.
A、English-speaking, northern European, Roman Catholic and middle-class
B、English-speaking, western European, Roman Catholic and upper-class
C、English-speaking, northern European, Protestant and upper-class
D、English-speaking, western European, Protestant and middle-class
A、heating
B、ventilation
C、drill stem
D、air conditioning
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