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【判断题】
同样粗细的纤维,断裂强力越大,表示材料强度越大。
A.
正确
B.
错误
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【判断题】当有火灾发生时,手动报警按钮的动作信号作为自动联动触发信号,控制消防水泵的启动。
A.
正确
B.
错误
【单选题】I in Microsoft Company for many years, but I have never regretted my final decisin to switch to Apple Company. [     ]
A.
had worked
B.
have worked
C.
have been working
D.
worked
【单选题】I studied in Cambridge for three years, but I've never regretted________the decision to move back to Beijing and________my own restaurant. [     ]
A.
to make; to open up
B.
making; opening up
C.
to make; open up
D.
making; open up
【简答题】()决定了音箱所能发出的最大声音强度。
【单选题】I ______ in Paris for many years, but I have never regretted my final decision to move back to China.
A.
have lived
B.
lived
C.
was living
D.
had lived
【单选题】决定音箱所能发出的最大声音强度的是
A.
声强
B.
功放芯片
C.
DAC
D.
功率
【单选题】达到高潮后,海面上有短时间不涨不落的现象,此时的潮位称为()
A.
高潮低
B.
低潮高
C.
高潮高
D.
低潮低
【简答题】涨潮时潮位不断增高,达到一定的高度以后,潮位短时间内不涨也不退,称之为(),平潮的中间时刻称为()时。平潮的持续时间各地有所不同,可从几分钟到几十分钟不等。平潮过后,潮位开始下降。当潮位退到最低的时候,与平潮情况类似,也发生潮位不退不涨的现象,叫做停潮,其中间时刻为低潮时。停潮过后潮位又开始上涨,如此周而复始地运动着。从低潮时到高潮时的时间间隔叫做涨潮时,从高潮时到低潮时的时间间隔则称为落潮时。一...
【简答题】解释:勤有功,戏无益。
【单选题】How I regretted ___the hours in the forest, ___I should have studied hard in the classroom.
A.
wasting; when
B.
to waste; when
C.
wasting; where
D.
to waste; where
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