在解剖上,咽隐窝位于()
A.下鼻甲后方
B.中鼻甲后方
C.会厌前方
D.咽鼓管圆枕后上方
E.会厌两侧
参考答案:D
Logistics () is the long term cooperation and business relationship between suppliers and customers.
A.group
B.partner
C.linkage
D.alliance
当节气门开度大于()时,电脑按功率混合比计算喷油量。
A.30°
B.50°
C.70°
D.90°