The nurse took _____ of my blood to test.A.an exampleB.an instanceC.a caseD.a sample

The negotiations which ______ the signing of the treaty took place over a number of years.

The history of nursing _____ the history of man.A、as old asB、 is old, also old isC、that

My father took the photos ______ we lived in Cambridge.A: thoughB: sinceC: untilD: when

My father took the photos ______ we lived in Cambridge.A: whenB: untilC: thoughD: since

When the doctor1 took my temperature, it was three degree above______.A．averageB．regularC．

The nurse took a （n)_____ of my blood for test.A.sortB.typeC.exampleD.sample