Professor James will give us a lecture on the Western culture, but when and where _____ yet. [ ]
A. hasn't been decided
B. haven't decided
C. isn't being decided
D. aren't decided
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臼齿的作用是磨碎食物。 [ ]
下列既包含遗传又包含变异的是( )
A.种瓜得瓜
B.老鼠的后代始终是老鼠
C.白猫生下黑猫
D.龙生龙,凤生凤
废热锅炉液位采用()控制。
A、串级
B、单回路
C、分程
D、定值
学习新信息对已有旧信息回忆的抑制作用叫( )。(浙江省)
A.前摄抑制
B.倒摄抑制
C.消退抑制
D.超限抑制
24小时多尿、少尿、无尿的评判标准是()
A.>3000mL,<400mL,<17mL
B.>2500mL,<400mL,<100mL
C.>2000mL,<1000mL,<100mL
D.>2500mL,<500mL,无尿
E.>2500mL,<100mL,<50mL