who invented the cotton gin and developed the system of mass production of weapons with interchangeable parts?A. John H. Hall.B. Eli Whitney.C. Thomas Edison.D. Henry Ford.

who invented the cotton gin and developed the system of mass production of weapons with interchangeable parts?

A. John H. Hall.

B. Eli Whitney.

C. Thomas Edison.

D. Henry Ford.


相关考题:

The film in my camera is finisheD.I need to get it _____. A.cutB.cleaningD.to testD.developed

A、prizedB、knowC、finishD、invented

Refer to Topic TestKing.com in iPAD document.What happens to the network when TestKingX is reconnected and a trunk exists between the two switches?() A. All VLANs except the default VLAN will be removed from all switches.B. All existing switches will have the students, admin, faculty, Servers, Management,Production, and no-where VLANs.C. The VLANs Servers, Management, Production, and no-where will replace the VLANs on SwX.D. The VLANs Servers, Management, Production, and no-where will be removed from existing switches.

The political situation in the region has deteriorated rapidly.A: improvedB: changedC: worsenedD:developed

Many forms of cancer can be cured if detected early.A:discoveredB:selectedC:operatedD:developed

He advanced a novel theory during the seminar.A:moved B:inventedC:furnished D:developed

One-room schoolhouse can still be found in isolated areas of North America.A:bareB:deprivedC:remoteD:developed

LINGO程序中,限制一维数组变量Y取整数,下列写法正确的是()。A.@gin(b(j):@for(y(j)));B.@for(b(j):@gin(y(j)));C.@for(b(j):@bin(y(j)));D.@gin(y(j));

LINGO程序中,限制一维数组变量Y取0-1变量,下列写法正确的是()。A.@gin(b(j):@for(y(j)));B.@for(b(j):@gin(y(j)));C.@for(b(j):@bin(y(j)));D.@gin(y(j));

LINGO程序中,限制一维数组变量Y取整数,下列写法正确的是()。A.@for(b(j):@gin(y(j)));B.@gin(b(j):@for(y(j)));C.@for(b(j):@bin(y(j)));D.@gin(y(j));