You will succeed in the end __________ you don't give up halfway.[ ]

A. even if

B. as long as

C. unless

D. as though

糖尿病酮症时酮体阳性指哪项（）

A.生酮氨基酸

B.β-羟丁酸

C.丙酮酸

D.乙酰乙酸、丙酮酸、β-羟丁酸

E.乙酰乙酸、β-羟丁酸