A. They will try some of it themselves.
B. They will use a special kind of poison.
C. They will drain the lake first.
D. They will only put the poison in the wells.
[单选题]What did the scientists do to find out if the e-nose worked?A. They presented it with all common crops..B. They fixed 13 sensors inside the device.C. They collected different damaged leaves.D. They made tests on damaged and healthy leaves.
[单选题]Be sure to make the engine turn by () before starting and after stopping .A . steering gearB . turning gearC . steering wheelD . turning cycle
[试题]______(make)sure that holidays and pay are not the first things you ask about.
[试题]______74_________ Make sure there is a table
[单选题]Scientists workingon a problem do not know and sometimes can't even guess w
[单选题]Scientists workingon a problem do not know and sometimes can't even guess w
[单选题]Scientists workingon a problem do not know and sometimes can't even guess w
[单选题]Scientists workingon a problem do not know and sometimes can't even guess w
[单选题]Scientists workingon a problem do not know and sometimes can't even guess w
[单选题]27. Scientists ____to make the deserts into good land again.A. carry water'B.grow foodC. do nothingD. study a lot