半辐射过热器一般以挂屏式悬吊在炉膛上方靠前墙处,故称前屏。 ( )
第1题
A.shimmering
B.flickering
C.simmering
D.fluttering
第2题
____________________(我刚刚打开电脑)than the power was off.
第4题
Mr. Smith used to work the night ______ in a power plant.
A.stretch
B.shift
C.time
D.turn
第5题
Light pollution occurs when______
A.artificial lights illuminate the night sky.
B.the moon lights up the night sky.
C.too many stars are visible in the night sky.
D.streetlights are turned off.
第6题
The group of Shakespeare plays known as "romance" or "reconciliation plays" is______.
A.Merchant of Venice, As You Like It
B.The Tempest, Pericles, The Winter's Tale
C.Romeo and Juliet, Antony and Cleopatra
D.The Merry Wives of Winsor, Twelfth Night
第7题
A.necessary cause
B.sufficient cause
C.contributory cause
D.None of them.
第8题
A.necessary cause
B.sufficient cause
C.contributory cause
D.none of the above
第9题
Light pollution occurs when______
A.artificial lights illuminate the night sky.
B.the moon lights up the night sky.
C.too many stars are visible in the night sky.
D.streetlights are turned off.
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