原料在加热（）调味，可称为基本调味。
A.前
B.中
C.后
D.结束
参考答案：A
—Can I speak to Mr. Black?
—I am sorry,but he ________New York for an important international meeting． [ ]
A. has been to
B. has gone to
C. has been in
D. has gone in
区别急性与慢性白血病的主要依据为
A．病程长短
B．血白细胞增加程度
C．有无肝、脾、淋巴结肿大
D．血片中原始细胞比例
E．骨髓幼稚细胞的成熟程度
