若宫颈黏液检查见羊齿状结晶则提示
A.体内有一定量的孕激素
B.体内有一定量的雌激素
C.体内无雌、孕激素
D.体内有一定量的雄激素
E.体内有一定量的HCG
参考答案:B
Choose the right answer to fill in the blanks. (看图完成句子。)
A. Thank you.
B. Good morning.
C. Nice to meet you, too
D. Where are you from?
A: Good morning.
B: 1_________________________.
A: This is my friend, Nancy.
B: Nice to meet you.
C: 2_________________________.
B: 3_________________________?
C: I am from the USA.
B: Welcome to our school!
C: 4_________________________.
周族兴起于()
A.泾水流域
B.洛水流域
C.渭水流域
D.汾水流域