以强化输送,保护产品为目的的包装称为()
A.物流包装
B.运输包装
C.商业包装
D.配送包装
参考答案:B
At the class meeting, some top students introduced several ____ to the study of English.[ ]
A. approaches
B. ways
C. means
D. methods
]X-连锁淋巴组织增生性疾病的突变基因为()
A.IL-2基因
B.XLP(LYP)基因
C.BtK基因
D.IL-2受体基因
E.RAGI基因