问题
选择题
—How many babies can a mother giant panda have ______?
—One or two.[ ]
A. one time
B. at a time
C. at times
D. some time
答案
答案：B
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—How many babies can a mother giant panda have ______?
—One or two.[ ]
A. one time
B. at a time
C. at times
D. some time
答案：B