In most cases,the _____of a person who sits on a pin is to leap into the air.

[单选题]A．n air courier is a person who_________A． .manages a business company in foreign countriesB． organizes international flights for touristsC． travels around the world with cheap ticketsD． delivers papers and packages to foreign countries.

[单选题]In most cases politicians are _____ as they seldom tell the truth.[A] credible[B] credulous[C] incredulous[D] incredible

[单选题]He [ventured]that plants draw part of their nourishment from the air.A.dare

[单选题]In most cases women shoppers arc supposed to ______.A． waste money on goods of poor qualityB． buy only the best clothesC． be much more careful than menD． think of the price of clothes and nothing else

[单选题]Where is the most air freight shipped in the passenger aircraft?（）A . separatelyB . Not clearC . In the lower partD . Not mention here

[单选题]The person who told the story is probably a______.A． policemanB． farmerC． newspaper reporterD． country doctor

[试题]A． reserved person is one who does not ______, and seldom gets excited.

[单选题]The most serious effect of air trapped in a diesel engine jacket water cooling system is that it（）.A . causes colloid suspension in the cooling waterB . reduces the capability of the lubrication systemC . can form pockets which block the flow of cool

[单选题]The（ ）is the most important document for air cargotransportation.A.B/LB.AWB

[单选题]The（ ）is the most important document for air cargotransportation.A.B/LB.AWB