Allowances may be made for the expansion and contraction in piping by the use of expansion

Traffic separation schemes may be （)by the Organization for the purpose of these Rules.

The main bearing shells are made of steel with a lining of bearing metal which may be whit

Pistons may be made in _____ in order to keep the weight down for balancing purposes at hi

CAN ANIMALS BE MADE TO WORK FOR US？ Can animals be made to work for us？ Some scientists think that one day animals may be trained to do a number of simple jobs that are now done by human beings. The

The central idea of the passage is that______.A．history should be made compulsory for the

According to the passage, which of the following may NOT be the reason for childrens overw