有性生殖方式与无性生殖方式的区别是( )
A.是否有健康的后代
B.有无两性生殖细胞的结合
C.是否有遗传性
D.都没有变异性
答案:B
The reason ________ is given for her absence is _______ nobody reminded her about the meeting.
A.which ; because
B.that ; that
C./ ; because
D.why ; that
妊娠四五月后,胎儿存活,但腹形明显小于妊娠月份,腰膝酸冷,纳呆便溏,治疗首选方剂是:
A.补肾固冲丸
B.补中益气汤
C.温土毓麟汤
D.八珍汤
E.四物汤