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【判断题】
珊瑚和鱼一起饲养没有风险。
A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【多选题】实行会员卡的企业,通常都会()
A.
. 收集会员 信息
B.
了解会员 购买情况
C.
针对 会员实施 营销 活动
D.
努力 将会员变成忠诚客户
【单选题】If a patient has a positive Trousseau's sign and a positive Chvostek's sign, what disorder does the patient most likely have?
A.
Hypophosphatemia
B.
Hypokalemia
C.
Hyponatremia
D.
Hypocalcemia
【单选题】下列说法错误的是( )
A.
摩擦力的大小是可以测量的
B.
摩擦力可以感觉得到
C.
刚好能使物体运动起来的力就相当于它受到的摩擦力
D.
运动物体的重量一样
【简答题】下列说法中错误的是____ A.在任何外力作用下,其大小、形状保持不变的物体称为刚体; B. 力是物体间相互的机械作用,这种作用使物体的机械运动状态发生变化; C.力对物体的作用效果决定于三要素:力的大小、力的方向、力的作用点; D. 约束力的方向必与该约束所能阻碍的位移方向相同。
【单选题】回溯法在问题的解空间树中按( )策略从根结点出发搜索解空间树。
A.
广度优先
B.
活结点优先
C.
扩展结点优先
D.
深度优先
【判断题】a positive attitude stems from a positive choice.
A.
正确
B.
错误
【单选题】What's the author's point of view on supermarkets?
A.
Supermarkets can live together with independent stores and markets.
B.
All the independent stores should close down in the five years.
C.
People shouldn't turn against the dominance of the supermarket.
【单选题】When the other person gives you a positive sign, you should give a positive sign, like a smile, in return
A.
R
B.
NR
【单选题】Early supermarkets sold only food and offered ____ services.
A.
a few
B.
few
C.
a little
【单选题】What he expressed as a mere supposition was taken by others as a positive statement.
A.
suspect
B.
surmise
C.
suspicion
D.
surrender
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