如果光照不足,而温度偏高,这时叶片的CO2补偿点()。
A.升高
B.降低
C.不变化
D.变化无规律
参考答案:A
— I often notice Wang Fang to the old people's home.
— I hear she often helps the old people there.
A. come
B. comes
C. came
D. to come
抗精神病药镇静作用强度顺序哪项是正确的:
A.三氟拉嗪<奋乃静<甲硫哒嗪
B.氯丙嗪>奋乃静>三氟拉嗪
C.甲硫哒嗪>奋乃静>氟奋乃静
D.三氟拉嗪>氯丙嗪>氟奋乃静
E.氟奋乃静>三氟拉嗪>氯丙嗪