【判断题】机体的免疫功能与淋巴细胞密切相关,其中T淋巴细胞主要参与细胞免疫,B淋巴细胞参与体液免疫。 ( )
【单选题】The case history of the twins appears to support the conclusion that______.
A.
individual with identical brains seldom test at the same level
B.
an individual's intelligence is determined only by his environment
C.
lack of opportunity blocks the growth of intelligence
D.
changes of environment produce changes in the structure of the brain
【单选题】The case history of the twins appears to support the conclusion that ______.
A.
individuals with identical brains seldom test at the same level
B.
an individual's intelligence is determined solely by his environment
C.
children reared under average conditions possess average intelligence
D.
lack of opportunity hinders the growth of intelligence
【简答题】T淋巴细胞参与的免疫称为____,B淋巴细胞参与的免疫称为____。
【单选题】8 已知某项目无建设期,资金于建设起点一次性投入,项目建成后可用8年,每年的现金净流量相等。如果该项目的静态投资回收期是6年,则按内含报酬率确定的年金现值系数( )
【简答题】The example of the twins going to a university and a factory separately shows
【单选题】已知某项目无建设期,资金于建设起点一次性投入,项目建成后可用8年,每年的现金净流量相等。如果该项目的静态投资回收期是6年,则按内含报酬率确定的年金现值系数是( )
【单选题】已知某项目无建设期,资金于建设起点一次性投入,项目建成后可用 10 年,每年的净现金流量相等,如果该项目的静态投资回收期是 5 年,则按内含报酬率确定的年金现值系数是( )。