The main route of transmission of hepatitis B does not include（）
A. blood transmission
B. mother-to-child transmission
C. sexual transmission
D. gastrointestinal transmission
查看答案
Characteristics of environmental endocrine disruptors（）
Adults are more sensitive than children
B. Widely distributed
C. Various forms of expression
D. Widely varieties
The main ways for environmental hormones to enter the human body are（）
A. Breath
B. Water
C. Mother-to-fetus transmission
Direct consumption through residues of agricultural products
How do environmental factors affect male fertility（）
Acting on testicles
B. Acting on epididymis
C. Acting on interstitial cells
D. Acting on mature sperm
The time for the female basal sex hormones test is（）
A. 2-5 day of menstruation
B. 3-7 days after menstruation
C. Any day of the menstrual cycle
D. Middle menstruation
微信支付 
支付宝支付