先天性心脏病的发病机制()
A.单基因突变
B.染色体异常
C.孕期感染
D.遗传与环境因素及其相互作用
E.孕期射线或特殊药物、毒物接触史
参考答案:D
_______for us to discuss the problem again.It has already been settled.[ ]
A. It has no doubt
B. There has no doubt
C. It is no need
D. There is noneed
资料1
根据上述材料,指出下列栏目的正确选项:
“运输工具名称”栏()。
A.HONEYWAY
B.HONEYWAYl2
C.KJDIF-356
D.DHF32218321