F．or the sake of the safety, many parents send their kids to school ________.

A． by car

B． by bus

C． by train

D． by public transport

[单选题]Many children， parents are away working in big cities，are taken good care of in the village．A．theirB．whoseC．ofthemD．withwhom

[单选题]B．F．or many parents , raising a teenager is like fighting a long war ,but years go by without any clear winner . Like a border conflict between neighboring countries ,the parent-teen war is about boundaries: Where is the line between what I control a

[单选题]E．ducation for education's sake was probably opposed by[A] scholars in the Renaissance period.[B] Jill Ker Conway.[C] scholars in the Dark Ages.[D] Plato.

[单选题]The arrangement of the meeting has to be kept confidential for the sake of

[单选题]safety beltA．安全带B．安全帽C．救生衣D．安全网

[单选题]safety netA．安全措施B．安全网C．安全帽D．安全防护

[单选题]Industrial safety does not just happen.Companies with low accident rates pl

[单选题]E．quipment not ______ official safety standards has all been removed from the workshop.A． conforming to B consistent with C predominant over D providing for

[单选题]Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.A . increasing the volume of intake airB . shutting off the fuel supplyC . increasing the engine back pressureD . over-speeding the engine

[单选题]The purpose of the safety relief valves installed on an auxiliary boiler is to （）.A . relieve excess fuel oil pressure during the “off” fire cycleB . admit water to the dry pipeC . throttle the forced draft fan output for proper combustio