The full title of the U.K. is the United Kingdom of （）and （）
填空题查看答案
“静脉石”的形成是静脉内的血栓发生了（）
单选题查看答案
静脉石或动脉石实质上是血栓发生了机化。
判断题查看答案
组织和细胞培养(tissue-and-cell-culture)
名词解析查看答案
静脉石是指（ ）
单选题查看答案
APUD瘤(amine precursor uptake and decarboxylation tumor)
名词解析查看答案
public and private colleges and universities and community colleges offer（）.
单选题查看答案
（）is used for calling and replying,and for transmitting acknowleding and relaying distress alerts.
单选题查看答案
The way in which people address each other depends on their age, sex, social group and personal relationship. The English system of address forms frequently used includes first name, last name, title+last name, （）, and kin term.
单选题查看答案