牙菌斑作为牙周病始动因素的依据是()
A.性激素与牙周有关
B.吸烟与牙周病有关
C.糖尿病与牙周病有关
D.洗必泰漱口液对牙龈炎治疗有效
E.以上均是
参考答案:D
When we finally ______ to get all the work done, we were so exhausted that we simply felt like lying down and having a good sleep.
A.tried
B.managed
C.succeeded
D.attempted
如果已经领取重大疾病保险金或者开始领取年金的,如何办理减保、退保()
A.根据条款约定判断
B.条款约定可以退保的可以做减保处理
C.条款约定不能退保的则不可以做减保处理
D.条款有没有约定都可以做减保处理