铁路大门及栈桥处应有（）安全标志。

小杰乘坐匀速行驶的汽车沿平直的公路穿过一座美丽的城市．城市公路两旁树木繁茂、绿草如茵．下列描述准确的是（　　）

A．小杰安静地坐在座椅上时不受到力的作用

B．在城市里植树种草可以缓解城市热岛效应

C．小杰向车窗外看时感觉到树木向后退，是以大地为参照物

D．草之所以呈绿色是因为草吸收了所有的绿光

用单词的适当形式填空。

1.Jim is _______ of his English. (confidence)

2.We gave _______ some advice. (his)

3.He enjoyed _______ during the holiday. (watch)

4.I enjoy _______ TV very much. (watch)

5.It is difficult ________ those words. (spell)

6.Would you like _______ with me? (go)

7.Tom _______ already ______ his homework. (finish)

8.Mr. Wang ______ us Chinese last year. (teach)

9.I will ask Tom ______ you about that. (tell)

10.Are you ________ at maths? (talent)

11.Some ________ (German) came here yesterday.

12.What is the ________ (spell) of the word?

13.Please use knives ________ (cut) things.

14.Have you ________ (write) anything?

15.The teacher is coming. Let's stop _______ (talk)?

项目的()，是投资由建设转入生产、使用和运营的标志，是全面考核和检查建设工作是否符合设计要求和工程质量的重要环节，是项目业主、承包商向投资者汇报建设成果和交付新增固定资产的过程。

A.竣工验收

B.移交

C.验收报告

D.试运营

应用抗癌药物疗效最佳的是（）

A.原发性卵巢癌

B.卵巢转移癌

C.子宫颈癌

D.子宫内膜癌

E.绒毛膜癌

人民警察义务具有以下特点：人民警察义务主体的普遍性，人民警察义务具有不平等性，人民警察义务直接决定于国家的任用行为。( )