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【单选题】
设X服从标准正态分布,则P=(-1≤X≤3)=()。
A.
φ(3)-φ(-1)
B.
φ(3)-φ(1)
C.
φ(3)
D.
φ(1)
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【单选题】作为总经理,你如何处理公司中存在的非正式组织?( )
A.
在全公司大会上严厉批评,要求不得继续活动
B.
听之任之
C.
提供适宜的环境,鼓励其发展
D.
加以引导使之活动与公司目标相一致
【单选题】The signal sequence for retention in the lumen of ER is _________________________.
A.
-Lys-Asp-Gly-Leu-COOˉ
B.
-Lys-Asp-Glu-Leu-COO ˉ
C.
-Lys-Asp-Gln-Leu-COO ˉ
D.
-Lys-Asn-Glu-Leu-COO ˉ
【单选题】The signal sequence for import into the nucleus is _________________________.
A.
-Pro-His-Lys-Lys-Lys-Arg-Lys-Val-
B.
-Ala-Pro-Lys-Lys-Lys-Arg-Lys-Val-
C.
-Pro-Pro-Lys-Lys-Lys-Arg-Lys-Val-
D.
-Pro-Pro-Lys-Lys-Lys-Arg-Lys-Tyr-
【判断题】The signal sequence that directs a protein from the cytosol into the nucleus is called nuclear localization signal (NLS).
A.
正确
B.
错误
【单选题】From the failure of EuroDisney we can learn that
A.
Europeans don't like Disney's cartoon characters.
B.
American and European cultures are not convergent at all.
C.
America and Europe have not so much in common as the company thought.
D.
not all people around the world like cartoons.
【单选题】The signal sequence for import into peroxisomes is __________________.
A.
-Ser-Lys-His-
B.
-Pro-Lys-Leu-
C.
-Ser-Lys-Leu-
D.
-Ser-Met-Leu-
【单选题】关于突触的描述,错误的是( )
A.
仅为神经元与神经元之间的细胞连接
B.
化学性突触由突触前成分、突触间隙与突触后成分构成
C.
突触前成分内含有突触小泡
D.
突触后膜上有特异性受体
【单选题】You can buy clothes _______ in Mary’s Store.
A.
the cheapest
B.
the most cheaply
C.
the most cheap
D.
the cheapliest
【单选题】From the passage we can learn that ______.
A.
Amy has never recovered from the shock
B.
Amy changed her job after the accident
C.
Amy lost her memory after the accident
D.
Amy has lived quite a normal life
【单选题】Early cancer screening can help reducesignificantly
A.
the death rates for a chronic diseases.
B.
the kinds of cancer attacking people.
C.
the incidence rate for cancer.
D.
the death rate for cancer.
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