【#双一流之外的首选大学# 】【#小泰喊你来学习# 】
题干：Many students choose to ______ online courses to supplement their classroom learning.
A. enroll in
B. take in
C. give in
D. hand in
#泰山科技学院[超话]# http://t.cn/AXS9DZRM
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泰山科技学院