俯卧扫查腹主动脉周围腹膜后淋巴结有一定难度,是因为()
A.髂腰肌干扰图像
B.俯卧位时淋巴结肿大
C.俯卧时淋巴结降入腹腔
D.脊柱产生声影伪像
E.以上均是
参考答案:D
What is the way George thought of ______ enough money to buy the house?
A.to get
B.getting
C.having got
D.being got
直流狭缝式燃烧器将少量的()与()以较低速度送入炉膛。