降压同时伴心率加快的药物有雷米普利。
参考答案：错
—Which of the two T-shirts will you take?
—I’ll take . One is for my brother and the other is for myself.
A. both B. either C. neither
某同学在做双缝干涉实验时，测得红光的波长为0.75 μm，则红光的频率是_______ Hz.
