循环血液中的肾上腺素和去肾上腺素来自()。
参考答案:肾上腺髓质
下列煤矿与所在省区组合,正确的是[ ]
A、开滦——河北
B、徐州——浙江
C、大同——江西
D、平顶山——河北
Companies and institutions most commonly hire project management leaders with ().
A.a strict standing in negotiating
B.experience in tricking business partners
C.integrity and expertise
D.a p link to local traditions