【单选题】With more and more farmers moving to cities, an inadequate labor force is becoming a major factor affecting the country's grain output.
【单选题】It can be inferred from the passage that which of the following has been a factor influencing the extent to which research on mycorrhizal fungi has progressed?
A.
lack of funding for such research
B.
lack of immediate application of such research
C.
difficulties surrounding laboratory production of specimens for study.
D.
lack of a method for identifying mycorrhizal fungi
【单选题】I can't say which type of tea tastes better. It's just a (an) _____ of personal preference. [ ]
【判断题】中国十大名花是菊花、牡丹、梅花、山茶、月季、桂花、兰花、水仙、荷花、杜鹃。
【单选题】下列各题共用备选答案
E.
盐酸阿扎司琼 含有咪唑结构的5一HT3受体拮抗剂是
【单选题】回答下列各题
E.
盐酸阿扎司琼 含有咪唑结构的5-TH3受体拮抗剂是 ( )
【单选题】Which of the following can be external negative factor?
D.
Adoption of friend's thought
【单选题】回答下列各问题
E.
盐酸阿扎司琼 含有咪唑结构的5-TH3 受体拮抗剂是 ( )