CO₂气体中含有少量SO₂，欲得到干燥纯净的CO₂，通过如图所示的洗气瓶，(1)(2)两瓶中所装的试剂应该是(　　)

A．(1)NaOH　　(2)浓H₂SO₄

B．(1)浓H₂SO₄　　(2)NaOH

C．(1)饱和NaHCO₃　　(2)浓H₂SO₄

D．(1)浓H₂SO₄　　(2)Na₂CO₃

During a client’s chemotherapy regimen for breast cancer, which is important for the nurse to include in her plan of care（）

A. Instruct the client to consume plenty of raw fruits and vegetables.

B. Take rectal temperatures for greater accuracy.

C. Tell the client to avoid crowds and infected individuals.

D. Ask friends and relatives not to visit during the course of chemotherapy.