【简答题】门控心血池显像时所获得的左心室放射性-时间曲线(A代表放射性计数,T代表心动周期)如图所示: 左心室时间-放射性曲线对于心肌灌注负荷显像的描述用 Tc-tetrofosmin一日法做运动+静息心肌灌注显像,则两次显像注射药物剂量至少应差A、1~2倍 B、2~3倍 C、3~5倍 D、5~7倍 E、7~9倍 运动负荷试验的显像方法中,最节省患者时间和检查次数的是A、 Tl负荷及延迟显像 B、 Tc-M...
【简答题】In this section, you are asked to write a composition entitled Which Is More Important, Family or Career? Your composition should be about 150 words.
【单选题】Which is NOT true about e-mail?
A.
It is sent through the telephone line.
B.
It is good for family relationship.
C.
Only people good at writing like e-mail.
D.
E-mail is becoming very popular in people's life and work.