心肺复苏后脑缺氧应
A．降温，脱水B．纠正低血压，强心C．纠正酸中毒D．高压氧舱治疗E．常规给氧
参考答案：A
肌球蛋白是一种很长的棒状分子，其头部有______酶活性，用胰蛋白酶裂解可形成______和______两个片段。
His father likes comedies, _____ he doesn't like thrillers. [ ]
A. and
B. or
C. but
D. then
