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驾驶员的劳动属于（）

A. 体力劳动
B. 脑力劳动
C. 智力劳动
D. 感知劳动

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What is true regarding InnoDB locking?（）

A. InnoDB uses row and table-level locks, but row locks are not escalates
B. InnoDB locks only those rows that are updated
C. InnoDB only uses row locks, not page or table-level locks
D. InnoDB row locks may be escalated to page or table-level locks
E. InnoDB uses row-level or table-level locks depending on the number of rows affected

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