叉车的（）装有车轮制动器。
A、前轮
B、后轮
C、前轮和后轮
D、全部车轮
参考答案：A
Thomas Jefferson and John Adams died on July 4, 1826, the fiftieth of American Independence ().
A．ceremony
B．anniversary
C．occasion
D．occurrence
“项号”栏应填( )。
A．01
B．02
C．01—02
D．02
