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[主观题]
By the end of this year, they______a new program in Europe.A.had startedB.startC.are start
By the end of this year, they______a new program in Europe.
A.had started
B.start
C.are starting
D.will have started
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By the end of this year, they______a new program in Europe.
A.had started
B.start
C.are starting
D.will have started
DECLARE
VAR_aCHAR(1):’N’;
BEGIN
DECLARE
Var_aCHAR(2);
BEGIN
Var_a:’Y’;
END;
DBMS_OUTPUT.PUT_LINE(VAR_A);
END;