根据《麻醉药品品种目录(2013版)》,美沙酮属于()
A.麻醉药品
B.第一类精神药品
C.第二类精神药品
D.医疗用毒性药品
参考答案:A
解析:美沙酮属于麻醉药品的一种。
It was the training ______ he had as a young man _____ made him such an excellent speaker.
A.which; which
B.which; that
C.that; which
D.that; what
怎样防治杨圆蚧?