【单选题】——
A.
People in their early forties lack ambition.
B.
People in their late fifties lack ambition.
C.
People in their mid forties lack ambition.
D.
People around fifties lack ambition.
【简答题】RA( 类风湿性关节炎)致残性强,是一种自身免疫病。该病与TNF-α(肿瘤坏死因子-α)密切相关。研究表明,一种人鼠嵌合的抗TNF-α单克隆抗体能有效治疗RA。下图为该单克隆抗体制备过程示意图。 (1)单克隆抗体的制备应用到细胞工程中的 ___________________ 、 ____________________ 技术。 (2)图中的抗原A是 ___________ ,HAT培养基的作用 ...
【单选题】According to the first paragraph, we can know that
A.
the India firm has been founded for 72 years.
B.
most French workers retire in their mid-forties.
C.
the French firm finally found someone suitable to talk to the patriarch.
D.
no French workers wanted to go to India.
【单选题】以下STM32F103VET6的通信端口和数量正确的是?
【单选题】以下哪项不是立式超声波洗瓶机洗瓶洁净度不符合要求的原因
【判断题】In their mid-forties, most executives would go on working so as to achieve all their important goals in life.