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【单选题】
在并发控制技术中，最常用的是封锁机制，基本的封锁类型有排它锁X和共享锁S，下列关于两种锁的相容性描述不正确的是（ ）。A.
X/X 相容：TRUE
B.
S/S相容：TRUE
C.
S/X相容：FALSE
D.
X/S相容：FALSE
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皮皮学刷刷变学霸
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【简答题】将下列数据修约为四位有效数字:3.95修约后为
【简答题】将下列数据修约为四位有效数字:54.38765修约后为
【简答题】将下列数据修约为四位有效数字: 0.536 0.58346 10.2750 16.4050 18.06501
【单选题】Which is not included in the natures of a distress DSC call?
A.
explosion.
B.
Flooding.
C.
Fire fighting
D.
Collision.
【简答题】将下列数据修约为四位有效数字 58.346 、 11.455 、 24.1450 、 18.06501
【简答题】将下列数据修约为四位有效数字:5.4545修约后为
【单选题】Friends of Animals, Inc. is ______
A.
a tax-funded organization
B.
a society which roms the streets
C.
a control center for destroying strays
D.
an agency interested in animals
【单选题】Around the area of Aswan there are a lot of important old temples, which____ ____about 1250BC. A
A.
88. Around the area of Aswan there are a lot of important old temples, which____ ____about 1250BC. A.dated from
B.
began with
C.
started with
D.
opened from
【单选题】Which one of the following is not required on survival crafts?
A.
Axes
B.
Lifebuoys
C.
Immersion suits
D.
Anti-seasickness medicine
【多选题】将下列数据修约为四位有效数字,符合有效数字修约规则的是
A.
6.3254-6.325
B.
6.3256-6.326
C.
6.3255-6.326
D.
6.32651-6.326
E.
6.3265-6.326
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