第36题: [单项选择]Which of the following sentences as INCORRECT A. Had I better take him upstairs B. Had I not better take him upstairs C. Hadn’t I better take him upstairs D. Had I better not take him upstairs 参考答案:D 答案解析:[解析] 否定疑问“难道……”可以用Had I not better…或Hadn’t I better…,not要放在better前面。
第37题: [多项选择]cAMP实现信号转导可以通过 A. 在膜的胞质侧调节离子通道 B. 激活蛋白激酶C C. 激活蛋白激酶G D. 激活蛋白激酶A 参考答案:A,D 答案解析:cAMP实现信号转导可以通过在膜的胞质侧调节离子通道;激活蛋白激酶A。