A、A.push rods
B、B.chain drives
C、C.rocker arms
D、D.flywheels
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A、A. These hatches are usually driven by electric or hydraulic power. B、B. These hatch covers are usually driven by electric or hydraulic power. C、C. These hatch covers are usually driven by electric. D、D. These hatch covers are usually driven by hydraulic power.
A、A.Binary backups are usually faster than text backups B、B.Binary backups are usually slower than text backups C、C.Text backups are human-readable while binary backups are not D、D.Binary backups are not portable across different operating systems
A、Compression subnets are turned on by default. B、Compression subnets advertise remote routes. C、Compression subnets are usually LAN-side subnets. D、Compression subnets are usually WAN-side subnets.
A、A.Cargoes are any type of goods transported by any type of ships B、B.Cargoes are goods transported in bulk C、C.Cargoes usually include goods transported in bulk and in containers D、D.Cargoes are usually packaged in containers
A、can usually be detected by radar in a smooth sea at a range of 4 to 6 kilometers B、are indistinguishable from sea return on the PPI C、are invisible to radar when covered with a thick layer of snow D、are usually seen at night before they are close enough to provide a radar echo
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