Rh溶血病的临床表现如下，除了
A．黄疸
B．胎儿水肿
C．DIC症状
D．贫血
E．核黄疸症状
参考答案：C
We’re glad to see that Beijing is developing _______ these years than ever before.
A．quickly
B．more quickly
C．most quickly
D．the most quickly
冠状病毒是引起人患非典型肺炎的病原体，经科学家研究发现其化学成分中含有脲嘧啶核糖核苷酸，由此判断其遗传物质是[ ]
A．DNA
B．RNA
C．DNA和RNA
D．DNA或RNA
