()适用于带壳,带细小骨头或形状小易流动的原料
A、摇切
B、侧切
C、锯切
D、直切
参考答案:B
On farewell party the foreign teacher gratefully _________ all the helps from all the school.
A.thank
B.acknowledge
C.claim
D.declare
已知偶函数f(x)满足f(x+2)=xf(x)(x∈R),则f(1)=______.