问题
单项选择题
可以将实时超声仪的探头归类为
A.环阵、扇开扫描、线阵换能器
B.仅为扇形换能器
C.扇形、线阵、环阵、凸阵换能器
D.静态换能器
E.单晶片换能器
答案
参考答案:C
可以将实时超声仪的探头归类为
A.环阵、扇开扫描、线阵换能器
B.仅为扇形换能器
C.扇形、线阵、环阵、凸阵换能器
D.静态换能器
E.单晶片换能器
参考答案:C
综合填空 (5分) 从下面方框中选择适当的词,并用其正确形式填空,方框中有两个多余的词。
One day he jogged into the park and another jogger knocked into him. A few minutes小题2:, he found his five-dollar bill wasn’t in his pocket. “The man might be a thief!” He thought, “It must be him that took my money. I must fight against the crime (犯罪)! ” The man was only 30 meters ahead. Brian ran after him, hit him on the shoulder, and said “Give me the money!” The man was 小题3:, but at last he gave Brian a five-dollar bill. Then he ran away as fast as he could! Brian felt really good and ran to the shop. He had got his money back. He 小题4: himself a cup of coffee and two hamburgers. Then he ran back home. His wife was waiting for him. She was shaking her head. “Oh, dear!” she said, “You’ve had a 小题5: morning, haven’t you ?” “No! Why? I’ve had a very good morning!” he said. “Really?” she said. “But you left your five-dollar bill on the table!” |