【单选题】In the author's opinion,______.
A.
the concept of teamwork is still alive and no longer the same as the past
B.
teamwork will be completely replaced by computers
C.
high technology would make teamwork a thing of the past
D.
teamwork requires more use of computers than that of human beings
【单选题】The author's attitude towards the introduction of the computer to teamwork is of one ______.
【单选题】加拿大科学家拉尔夫•斯坦曼因在“树突状细胞及其在特异性免疫系统方面作用的发现”获得2011年诺贝尔生理学或医学奖。下列关于原核细胞与真核细胞比较的描述错误的是( )。
A.
两类细胞中8种核苷酸都含有C、H、O、N、P
【单选题】猕猴桃肉肥汁多,清香鲜美,甜酸宜人,含有丰富的维生素C[C 6 H 8 O 6 ],可强化免疫系统,促进伤口愈合和对铁质的吸收;它所富含的肌醇[(CHOH) 6 ]及氨基酸,可抑制抑郁症,补充脑力所消耗的营养。下列有关说法正确的是
C.
维生素C是由6个碳原子、8个氢原子和6个氧原子构成
【单选题】Baseball requires teamwork _______ tennis is an individual sport.
【单选题】猕猴桃肉肥汁多,清香鲜美,甜酸宜人,含有丰富的维生素C(化学式为C 6 H 8 O 6 ),可强化免疫系统,促进伤口愈合和对铁质的吸收。下列说法正确的是
C.
维生素C是由6个碳原子、8个氢原子和6个氧原子构成
D.
维生素C中C、H、O三种元素质量比是3:4:3
【单选题】关于补体的描述错误的是
A.
存在于人和动物血清中的一组经活化后具有酶活性的蛋白质
C.
补体的三条激活途径分别是经典途径、旁路途经和SPA途径
D.
补体与抗原抗体复合物结合介导免疫病理性损伤,是参与免疫应答过程中重要的效应系统和效应放大系统
【单选题】According to the passage the writer believes that ______.
A.
the concept of teamwork is still alive and no longer the same as the past
B.
teamwork will be completely replaced by computers
C.
high technology would make teamwork a thing of the past
D.
teamwork requires more use of computers than that of human beings
【简答题】猕猴桃肉肥汁多,清香鲜美,甜酸宜人,含有丰富的维生素C[C 6 H 8 O 6 ],可强化免疫系统,促进伤口愈合和对铁质的吸收.下列说法正确的是( ) A.维生素C由碳、氢、氧三种元素组成 B.维生素C相对分子质量为176g C.维生素C是由6个碳原子、8个氢原子和6个氧原子构成 D.维生素C中各元素质量比C:H:O=3:4:3