患者男,60岁,咽食物时有梗噎感,初步诊断为食道癌,为确诊不需做下列哪项检查()
A. 钡餐X线检查
B. 食管脱落细胞学检查
C.B超
D. 纤维食管镜检查
E. CT
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London ______ on the River Thames.
A. stands
B. stand
C. is standing
D. will stand
Father ______ smoke.
A. isn’t
B. aren’t
C. doesn’t
D. never
He hardly ever ______ a mistake when he writes.
A. make
B. makes
C. is making
D. is going to make
Now I ______ the cake mixture into this bowl and _____ a drop of vanilla essence(香草精油).
A. am put, add
B. put, add
C. am putting, am adding
D. puts, adds