跑时,摩擦力虽是阻力,但可使人体间接地获得运动的动力。
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在大型的演讲之前,支持人通常总要对演讲者进行一番介绍,试解释这种介绍的作用。
Which of the following gases represents the greatest threat to personnel safety in an engine room where the exhaust is leaking from a diesel engine?()
A. Carbon dioxide
B. Carbon monoxide
Carbon trioxide
D. Hydrogen sulfide
You included the following Automatic Storage Management (ASM) initialization parameter settings in the ASM initialization parameter file: INSTANCE_TYPE = ASM ASM_POWER_LIMIT = 11 LARGE_POOL_SIZE = 4M ASM_DISKGROUPS = DG1, DG2 DB_UNIQUE_NAME = +ASM You are unable to start the ASM instance. Which initialization parameter file setting(s) is not allowing the ASM instance to start?()
A. only the INSTANCE_TYPE initialization parameter is set to an invalid value
B. only the ASM_POWER_LIMIT initialization parameter is set to an invalid value
C. only the LARGE_POOL_SIZE initialization parameter is set to an invalid value
D. both the LARGE_POOL_SIZE and INSTANCE_TYPE initialization parameters are set to invalid value