【单选题】下列内容中, 不属于导游员致欢迎词的必讲内容。
【多选题】确诊胃溃疡的首选检查方法是
E.
胃液分析 【答案】:A 【解析】:此题考查的是胃溃疡的检查诊断。胃镜检查及胃黏膜活组织检查是确诊消化性溃疡首选的检查方法。 【题型】 A1
【单选题】The demand for a good is more elastic if the
B.
good has few substitutes.
C.
good is narrowly defined.
D.
supply of the good is plentiful.
E.
Both answers B and C are correct.
【单选题】下列内容中,( )不属于导游员致欢迎词的必讲内容
【简答题】呼气末正压的英文缩写是__________。
【单选题】If a substitute good is easy to find, then demand for a good is
E.
Substitutes don't have any effect on elasticity.
【单选题】The demand for a good is elastic if
A.
an increase in its price results in an increase in total revenue.
B.
a decrease in its price results in a decrease in total revenue.
C.
an increase in its price results in a decrease in total revenue.
D.
the good is a necessity.