PH值对某些水生动物卵的受精产生影响,PH值过高或过低都影响受精作用并导致受精卵死亡。()
参考答案:对
Directions: The question below is followed by six choices numbered 260-265. If a choice is correct, mark A in the space provided. If a choice is not correct, mark B. Blacken one circle on your answer sheet for each number. The nurse is teaching an adolescent with inflammatory bowel disease about treatment with corticosteroids. Which adverse effects are concerns for this client
Osteoporosis.
3个人照相,有( )种排列方法。