第一届世界博览会是由（）组织举办的。A.美国 B.法国 C.德国 D.英国

阅读下面短文然后从各题所给的三个选项中选出最佳选项。

Helen 's favorite food is chocolate. Her parents and teacher often say that it's        for her teeth to eat too much chocolate. But she doesn't believe it. She often puts some chocolate in the milk for breakfast, the juice         lunch, even the soup for supper. Her mother has to        some chocolate in her bag before she goes to school. Sometimes when her mother goes shopping with her, Helen won't leave the shop        her mother buys some chocolate for her.

The little girl        back from school with a painful(痛苦的) look yesterday afternoon. A tooth hurt and she had nothing. Her mother made some soup for her. But she put some chocolate in it. Her father bought some       for her, but she put some chocolate in it, too. Of course it was useless.       the next morning her mother took her to see the      .The dentist saw there was a cavity(洞) in her bad tooth .So he had to fill（填充）it with something.

“Now, young girl,” said the dentist , “What kind of filling（填充物） would you like for that tooth ?”

“     , please,” answered Helen. The dentist and Helen’s mother both laughed. The dentist asked Helen to eat fresh fruit and vegetables        chocolate. And it’s necessary for Helen to have healthy eating habits.

小题1:A. good    B.  bad C.  well

小题2:A. for B.  with    C.  at

小题3:A. get B.  put C. buy

小题4:A. when    B.  if C.  until

小题5:A. go  B.  came    C.  returned

小题6:A. medicines   B.  pills   C.  medicine

小题7:A. But B.  So  C.  And

小题8:A. doctor  B.  nurse   C.  dentist

小题9:A. Chocolate   B.  Milk    C.  Fruit

小题10:A. instead    B.  but C.  instead of

血容量感受器兴奋可使

A．抗利尿激素分泌增多

B．抗利尿激素分泌减少

C．醛固酮分泌增多

D．醛固酮分泌减少

E．抗利尿激素和醛固酮分泌都增加

沙门菌属不具有的抗原为（）

A.O抗原

B.H抗原

C.Vi抗原

D.K抗原

E.M抗原

保险公司作出更改特别约定的，新的特别约定内容自收到（）起生效。

A.公司同意出具批单的次日

B.客户确认回执的次日

C.客户提出申请的次日

D.同意变更的次日零时

做V形手势这一手势切记掌心要向内，如果掌心向外在西欧则表示侮辱之意。