体温调节的重要中枢位于
A．脊髓
B．延髓
C．中脑
D．大脑
E．下丘脑
参考答案：E
—Would you like to go fishing with me?
—_______, but I'm very busy at present. [ ]
A. I' d love to
B. I think so
C. I'm afraid not
D. I hope not
注射剂中，吐温-80常用作
A．金属离子络合剂B．增溶剂C．pH调节剂D．抗氧剂E．等渗调节剂
