The town council fired the old man because they thought________.
his job was not useful
his salary was too high
he did not do his job well
he was too old for the job
Dogs can recognize chemical changes________.
to train their sense of smell
to perform search and rescue
which are caused by diseases
who suffer from certain cancers
which molecules go with cancer
by recognizing certain blood samples
When setting out to work, the aborigine women leave their children at home.
Electronic nose design
Blood sample detection
Training for dogs
Life-saving ability of dogs
Dogs' ability to detect diseases
The town council fired the old man because they thought________. - 免费查看答案和解析 -诚为径搜题找答案