促进秀丽杆线虫的细胞程序性死亡的基因是以下哪一项?()
A.Wt1
B.ced-4
C.ced-9
D.bcl-2
参考答案:B
Nowadays, there is a _____ increase in children's creativity, for they are greatly encouraged to develop their
talents. [ ]
A. sharp
B. slight
C. natural
D. modest
老年患者应尽量避免使用的是()。
A.钙拮抗剂
B.青霉素类
C.水杨酸类
D.长效苯二氮卓类
E.头孢菌素类