一张桌子是152元，一把椅子是42元，公司买了25套桌椅，一共要花多少钱？
（152+42）×25
=194×25
=4850（元）
答：一共要花4850元．
Pine trees, of which there are almost one hundred _____, are found throughout the North Temperate Zone.
A．species
B．samples
C．specimens
D．Standards
偏阴质的人多易感受下列何种病邪()
A．风燥
B．风湿
C．风暑热
D．寒湿
E．七情
