Bill of exchange, or draft, is an instrument containing unconditional ______, signed by the maker directing certain party to make the payment of certain amount to certain party or to the bearer of the instrument.

The hedge is effective in that (i) economic relationship exists between the hedging item and hedged item, (ii) the effect of credit risk does not dominate the value changes, and (iii) the hedge ratio is the same as that arising from quantity of hedged instrument to the quantity of hedging instrument.‍

Lusheng is not a musical instrument. ( )

He is learning how to play a musical instrument.

词汇与结构 Engine indications are _____ on the center instrument panel by the Engine Instrument System.

Output device is an instrument of ____ .

The old musical instrument ________.

A trumpet is a brass instrument

Acupuncture is a type of ______ that stimulates certain locations or ______ of the body by manipulating needles or other similar instrument.

如果仪器没有给出结果，就做一个测试。 A: If the instrument does not give a result, do a test. B: If the instrument fails to respond, do a test. C: If the instrument fails to result, do a test.