根据《数字移动通信(TDMA)工程施工监理规范》,监理工程师应()向建设单位报告工程投资动态情况。
A.定期
B.不定期
C.定期或不定期
D.定期与不定期
参考答案:A
It is widely accepted that young babies learn to do things because certain acts lead to _______.[ ]
A. rewards
B. prizes
C. awards
D. results
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