某企业把工资水平分成高、中、低三三类，所采用 的计量尺度是（）。

Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are ____.

A.accurate only in the Polar regions

B.accurate electronic servomechanisms

C.hand operated

D.accurate only if the vessel is underway

At the master gyrocompass，the compass card is attached to the ______．

A.Spider element

B.Sensitive element

C.Link arm

D.Pickup transformer

A．磁罗经

B．罗经差

C．电罗经

D．罗经花

There are indications that ______(不少工厂正面临着十分困难的局面)．

89．There are indications that ______(不少工厂正面临着十分困难的局面)．

Which statement about the gyrocompass is FALSE ________．

A.Its accuracy remains the same at all latitudes

B.It seeks the true meridian

C.It can be used near the Earth's magnetic poles

D.If an error exists，it is the same on all headings

A．symbols

B．signs

C．signals

D．indications

A、Actions

B、Mechanisms

C、Indications

D、Adverse drug reactions