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【判断题】
操纵子是指编码一组功能上相关的蛋白质基因,与共同的控制位点组成的基因表达的调控单位。真核生物的基因表达调控方式主要是负调控。( )
A.
正确
B.
错误
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【简答题】stationary phase
【多选题】Let be independent normal variables each with mean 0 and variance and let a,b and c be constants. Which, if any, of the following processes are stationary?
A.
B.
C.
D.
E.
【单选题】131 个别客人提出非分要求,明显地无理取闹,行为、语言粗鲁,虽经合理而耐心的解释,但仍发生投诉,即为
A.
一般投诉
B.
严重投诉
C.
抱怨投诉
D.
恶意投诉
【单选题】He has made ________ that we are proud of him. [     ]
A.
so rapid progress
B.
such a rapid progress
C.
such rapid progress
D.
such rapid progresses
【单选题】There is ________ in population that a food shortage is caused.
A.
so rapid an increase
B.
such rapid an increase
C.
such rapid increase
D.
so a rapid increase
【单选题】rapid--rabid
A.
rapid
B.
rabid
【简答题】A.successful B.compulsory C.miserable D.stationary
【多选题】建设项目管理的核心内容可概括为“三控、二管、一协调”,即:
A.
进度控制
B.
质量控制
C.
费用控制
D.
合同管理
E.
信息管理
F.
组织协调
G.
风险控制
【简答题】A.successful B.compulsory C.miserable D.stationary
【单选题】Let |x|= 3, if x is an odd integer; Let |x|= 6, if x is an even integer. r and s are integers, 3r is odd, and 5+5 is odd. Column A Column B |r| |s|
A.
if the quantity in Column A is greater
B.
if the quantity in Column B is greater
C.
if the two quantity are equal
D.
if the relationship cannot be determined from the information given
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