学位论文的文献综述一般应在完成开题报告()完成。
A之前
B同时
C之后
D之前或同时
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要查询姓“张”或者是2003年1月1日前注册的用户，请问用哪条语句()。
A. Select*FromusersWherereal_name=
B. Select*FromusersWherereal_name=
C. Select*FromusersWherereal_namelike
D. Select*FromusersWherereal_namelike
-般来说，初级者的训练频率通常是()
A. 1次/周
B. 1—2次/周
C. 2—3次/周
D. 3-4次/周
A.They care much about their health.B.They eat foods with little fat.C.They use little oil
A. They care much about their health.
B. They eat foods with little fat.
C. They use little oil in cooking.
D. They have lower mortality rates.
以弹簧变形来吸收轿厢成对重产生动能的缓冲器，称之为()
A. 油压缓冲器
B. 蓄能型缓冲器
C. 耗能型缓冲器
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