缩写IV-DSA正确解释是（） A.数字减影 B.数字血管造影 C.数字减影血管造影
题型：单项选择题 A1/A2型题
问题：
缩写IV-DSA正确解释是（）
A.数字减影
B.数字血管造影
C.数字减影血管造影
D.静脉数字减影血管造影
E.动脉数字减影血管造影
题型：单项选择题 A1/A2型题
用动词的正确形式填空。
1. Mr Smith _____ (play) basketball every morning. Yesterday morning it _____ (rain). He didn't
_____ (play) in the morning, But in the afternoon, at that time, the ground _____ (be) dry.
2. Mrs White _____ (be) a good cook.. I _____ (like) her food. She sometimes _____ (try) some
new ki nds of food. Last night, she _____ (cook) sweet and sour 
fish. It _____ (be) delicious.
It _____ (be) my first time to eat sweet and sour fish.