【单选题】以下描述正确的一项是 [ ]
A.
植物组织培养是指离体的植物器官或细胞培养成愈伤组织
B.
从免疫学的应用来看,给儿童服用小儿麻痹糖丸属于免疫预防
D.
动物细胞融合技术的最重要的用途是培养具双亲优良性状的经济动物
【单选题】听力原文:Which of the following is NOT the benefit of this effort? (29)
A.
This effort will apprise land's use rights before contracting lease.
B.
Add to the State revenue.
C.
Improve the management of the land.
D.
Ensure the best use of land resources and control its redistribution.
【单选题】下列哪种药物可降低血液黏稠度,改善微循环
【单选题】Getting rid of bad habits is _____ forming a good one. [ ]
【单选题】关于肝血管瘤,下列描述中正确的是 ( )
【单选题】Coordination Effort is necessary to coordinate the allocation of attention between ______________.
A.
Input Effort, Memory Effort and Output Effort
B.
Input Effort, Transformation Effort and Output Effort
C.
Analyzing Effort, Memory Effort and Production Effort
D.
Listening Effort, Memory Effort and Production Effort
【单选题】Getting rid of bad habit is________forming a good one. [ ]
【单选题】以下有关花药与花粉培养描述不正确的是( )。