步骤4

A．将插管向输卵管开口处插入0.5cm左右
B．探宫腔
C．从插管中缓慢注入复方苯酚糊剂
D．将外套管及插管放入宫腔，达宫底后滑入宫角
E．注入生理盐水8～10ml问输卵管药物粘堵术的步骤

Dear editor,
I am Evan from Canada. Being the eldest child in the family has its
disadvantages．First of all, I have to share all my______(玩具)with my 61.______
younger sisters．0f course，they don’t n______to return the favors because 62.______
I’m totally uninterested in their things．______(除……之外)that， 63.______
they are always hanging around me．I just can’t get a moment’p______． 64.______
At meals．I have to eat whatever is______the plate regardless of65.______
the taste．My sisters only try one bite if it not ______favorite food． 66.______
In addition，w______it comes to practicing our musical instruments，I have to67.______
Dractice than double the time．Worst of all，I get a larger quantity68.______
of homework，______(对比)to them．69.______
I’m feeling rather annoyed．Can you please g______me some advice 70.______
Yours truly，
Evan Smith