钻芯法检测混凝土抗压强度，芯样试件的直径应不小于骨料最大粒径的（）倍。
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背书人、承兑人、保证人在票据上的签章不符合法规规定的，票据无效。()
A. 正确
B. 错误
Which three statements must be true before transporting a tablespace from a database on one platform to a database on another platform?（） (Choose three.)
A. Both source and target database must be the same character set
Both source and target database must have the same endian format
C. The COMPATIBLE parameter must be the same in the source and target databases.
D. The minimum compatibility level for both the source and target database must be 10.0.0.
E. All read-only and offline data files that belong to the tablespace to be transported must be platform aware.
与米诺环素合用会影响其吸收导致抗菌作用减弱的药物是（）。
A. 维生素B6
B. 铝碳酸镁
C. 伏立康唑
D. 阿司匹林
E. 利福平
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