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【单选题】
After inspection of the above shipment we found 5 cases ______.A.
losing
B.
missing
C.
lost
D.
missed
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【简答题】表征钢筋塑性性能的常用指标是 [填空(1)] 。A. 伸长率
【单选题】On mid-ocean waters，the height of a wind-generated wave is not affected by the（）.
A.
water depth exceeding 100 feet
B.
fetch
C.
wind's velocity
D.
duration of the wind
【简答题】现有①铁片②NaNO 3 ③NH 3 ·H 2 O ④FeCl 3 ⑤酒精⑥H 2 S其中属于电解质的是（填写序号） ，属于非电解质的是 ，属于强电解质的是 ，属于弱电解质的是 。写出其中可发生水解的物质的水解离子方程式 。
【单选题】Hydrothermal vents along the mid-ocean ridges host ephemeral ecosystems of diverse fauna, including several crustacean species, some of which undergo development as larvae up to 1,000 meters above and...
A.
Adaptive Visual Metamorphosis in Deep-Sea Vent Crabs
B.
Aspects of the General Anatomical Development of Deep-Sea Vent Crabs
C.
New Research Directions in the Study of Deep-Sea Vent Crabs
D.
Common Features of Optics of Lower Depth Oceanic Animals
E.
Patterns of Anatomical Transformation in Lower Oceanic Creatures
【单选题】下面代码可以实现二分查找, while() 循环的条件为:() int s=0,t=n-1; int mid; while ( _____ ) { mid = ( s+t )/2; if ( a[mid] == key ) return mid; if ( a[mid] < key ) s=mid+1; else t=mid-1; }
A.
s<=t
B.
s>t
C.
s==t
D.
s
【简答题】下列说法中正确的是 _________ 。 ( 1 ) NaCl 溶液导电,所以 NaCl 溶液 是电解质; ( 2 ) 固体 NaCl 不导电,但 NaCl 是电解质; ( 3 ) Cu 能导电,所以 Cu 是电解质; ( 4 ) SO 3 溶于水能导电,所以 SO 3 是电解质; ( 5 ) BaSO 4 的水溶液不导电,所以 BaSO 4 是非电解质。 ( 6 )液态酒精、酒精的水溶液不导电...
【单选题】Hydrothermal vents along the mid-ocean ridges host ephemeral ecosystems of diverse fauna, including several crustacean species, some of which undergo development as larvae up to 1,000 meters above and...
A.
Adaptive Visual Metamorphosis in Deep-Sea Vent Crabs
B.
Aspects of the General Anatomical Development of Deep-Sea Vent Crabs
C.
New Research Directions in the Study of Deep-Sea Vent Crabs
D.
Common Features of Optics of Lower Depth Oceanic Animals
E.
Patterns of Anatomical Transformation in Lower Oceanic Creatures
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