问题
单项选择题
Our practices are conformable to the requirements（）by international organizations.
A.laid down
B.lied down
C.layd own
D.laid out
答案
参考答案：A
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Our practices are conformable to the requirements（）by international organizations.
A.laid down
B.lied down
C.layd own
D.laid out
参考答案：A