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【多选题】
垄断资本向世界范围扩展的主要经济动因是:A.
将国内过剩的资本输出，以便在国外谋求高额利润
B.
将部分非要害的技术转移到国外，以取得在别国的垄断优势，攫取高额垄断利润
C.
争夺商品销售市场
D.
确保原材料和能源的可靠来源
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【简答题】分子量最大的免疫球蛋白是（ ）|局部抗感染的免疫球蛋白是（ ）|唯一能通过胎盘的免疫球蛋白是（ ）|参与Ⅰ型变态反应主要免疫球蛋白是（ ）A. IgGB. IgMC. IRED. SIgAE. IgD
【单选题】Which of the following is not the definition of a task in Task-based Language Teaching?
A.
A piece of classroom work in which learners ’ attention is principally focused on both meaning and form.
B.
An activity where the target language is used by the learner for a communicative purpose.
C.
A range of workplans which have the overall purpose of facilitating language learning.
D.
An activity which requires learners to arrive at an outcome.
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