当α粒子穿过细胞核时释放的能量足以在多处打断DNA,其释放的能量为()。
A.0.5MeV
B.1.0MeV
C.1.5MeV
D.2.0MeV
E.2.5MeV
参考答案:B
凡是用泵高速输送高电阻有机液体,而且在容器内自由落于液面上,或是通过过滤器或类似设备,都会产生静电。
The Latin class had twenty students, most of which had had much better language training than I.