(99m)Tc-MAA进行肺灌注显像,其颗粒直径的大小应在()
A.<8μm
B.<10μm
C.10~60μm
D.100~300μm
E.300μm以上
参考答案:C
Although he is always coming on time,he is used late for his class.
A.to have students
B.for students’ being
C.to students’ being
D.for students’ to be
电子汇兑来账和个人账户通存来账,按照()原则入账。
A.行号优先
B.户名优先
C.账号优先
D.开户行优先