以下属于离子型造影剂的是（）。 A.泛影葡胺 B.碘化油 C.碘普罗胺 D.碘佛醇

设无向树T由3个3度顶点，2个2度顶点，其余顶点都是树叶，则T有( )片树叶。

A．3

B．4

C．5

D．6

FIDIC施工合同条件规定，为了合理分担市场价格浮动变化对施工成本影响的风险，在合同内要约定调价方法。如因承包的原因发生工程延误，在后续支付时，( )。

A．调价方法继续有效

B．调价方法无效

C．按对业主有利的原则执行

D．应酌情扣减违约金

“两小腿后屈，脚尖着地，双膝并拢”这是女士的（）坐姿

A、标准式

B、屈直式

C、后点式

D、侧点式

某公司需要销毁一批已经保管到期的会计凭证，档案管理部门与财务部门经过共同审查，找出了其巾的未了结债权债务的原始凭证10张，并且单独抽出，另行立卷，公司决定从单独抽出立卷之日起由单位档案部门保管1年。该公司的做法是符合法律规定的( )

The problem is my weight. I’m just 1.57 meters high, but51. ______
my weight is 75 kilos. Many students often make a fun 52. ______
of me. Some boys were unfriendly for me—they call 53. ______
me "meat ball". That makes me to feel unhappy. 54. ______
Although I’m a bit too fat, yet I feel very well. I 55. ______
enjoy my meal. I love eating meat very much. And I like 56. ______
sweet food, though. I often have sugar with tea, milk. In57. ______
the past two months I had put on 5 kilos. So I’m becoming58. ______
more and more worried this problem, but I don’t 59. ______
know to lose weight quickly. Could you help me, dear doctor. 60. ______