This is just _____ challenging job all the students want to get. Do you have anyone in _____ mind for it? [ ]

A. at; the

B. the; 不填

C. the; the

D. a; 不填

陈女士，66岁，诊断心房纤维颤动。护士为其测血压，动脉搏动微弱而不易辨清，需重复测量。下述做法错误的是

A．将袖带内气体驱尽
B．使汞柱降到“0”点
C．稍等片刻后重测
D．连续加压直到听清为止
E．测量值先读收缩压，后读舒张压