AIn the liquid-fuel rocket, the purpose of the valves Bis control the flow of th

游客2025-02-04 32

问题 AIn the liquid-fuel rocket, the purpose of the valves Bis control the flow of the propellants, enabling the engine Cto work at different degrees Dof power.

选项 A、
B、
C、
D、

答案 B

解析 Is control is an incorrect structure. An infinitive is needed after the purpose of the valves is. Correction: is to control.

转载请注明原文地址:http://tihaiku.com/zcyy/3942875.html

相关试题推荐

PolarbearsAappearbow-legged,butthepurposeofthisstrangewalkisBenable
Whatisthemainpurposeofthediscussion?[br]Listenagaintopartofthedis
Whatisthemainpurposeofthediscussion?[br]Whataretwoadvantagesofusin
Whatisthemainpurposeofthediscussion?[originaltext]Listentopartofale
Whatisthemainpurposeofthelecture?[br]Whatistheprofessor’sopinionab
Whatisthemainpurposeofthelecture?[br]Accordingtotheprofessor,whati
Whatisthemainpurposeofthelecture?[br]Whydoestheprofessortalkabout
Whatisthemainpurposeofthelecture?[br]Accordingtotheprofessor,whatf
Whatisthemainpurposeofthelecture?[br]Whydoestheprofessordiscussthe
WHATCONTROLSFLOWERING(1)Thetimi

随机试题

Ifourbrainswerecomputers,we’dsimplyaddachiptoupgradeourmemory.
AnotheraspectofAmericansocietythatmay【C1】______non-Americansisthefa
We(occasion)______sawhimwalkingalongtheriverbank.occasionally本题考点是词性转换。
Althoughtheymaynotdiefromlackoflove,adultsalsoneedagreatamount
Readinginvolveslookingatgraphicsymbolsandformulatingmentallythesou
湾区是由一个海湾或若干个相连的海湾、港湾、邻近岛屿共同组成的区域。随着经济全球化
根据《合同法》，下列合同中，当事人可以请求人民法院或者仲裁机构撤销的合同有(
热带型肺嗜酸性粒细胞增多症辅助检查可有以下表现，除外A.血清华氏反应阳性 B.
团队能力开发的方法不包括()。A:人员配合 B:人员任用和分配情况 C:奖
下列乳牙龋病特点中哪项是错误的A.发病率高，发病时间早，多发 B.容易发展成牙

最新回复(0)

AIn the liquid-fuel rocket, the purpose of the valves Bis control the flow of th

PolarbearsAappearbow-legged,butthepurposeofthisstrangewalkisBenable

Whatisthemainpurposeofthediscussion?[br]Listenagaintopartofthedis

Whatisthemainpurposeofthediscussion?[br]Whataretwoadvantagesofusin

Whatisthemainpurposeofthediscussion?[originaltext]Listentopartofale

Whatisthemainpurposeofthelecture?[br]Whatistheprofessor’sopinionab

Whatisthemainpurposeofthelecture?[br]Accordingtotheprofessor,whati

Whatisthemainpurposeofthelecture?[br]Whydoestheprofessortalkabout

Whatisthemainpurposeofthelecture?[br]Accordingtotheprofessor,whatf

Whatisthemainpurposeofthelecture?[br]Whydoestheprofessordiscussthe

WHATCONTROLSFLOWERING(1)Thetimi

Ifourbrainswerecomputers,we’dsimplyaddachiptoupgradeourmemory.

AnotheraspectofAmericansocietythatmay【C1】______non-Americansisthefa

We(occasion)______sawhimwalkingalongtheriverbank.occasionally本题考点是词性转换。

Althoughtheymaynotdiefromlackoflove,adultsalsoneedagreatamount

Readinginvolveslookingatgraphicsymbolsandformulatingmentallythesou

湾区是由一个海湾或若干个相连的海湾、港湾、邻近岛屿共同组成的区域。随着经济全球化

根据《合同法》，下列合同中，当事人可以请求人民法院或者仲裁机构撤销的合同有(

热带型肺嗜酸性粒细胞增多症辅助检查可有以下表现，除外A.血清华氏反应阳性 B.

团队能力开发的方法不包括()。A:人员配合 B:人员任用和分配情况 C:奖

下列乳牙龋病特点中哪项是错误的A.发病率高，发病时间早，多发 B.容易发展成牙