用括号内所给词的适当形式填空
⑴I enjoy reading this kind of ____  magazine. （每周）
⑵It is good for your health to ____  deeply. （呼吸）
⑶It ____  on the two sides of the river.（位于）
⑷A large number of new ____ will live in Yangzhou.（移居者）
⑸The small town is becoming more and more ____  and polluted.（拥挤的）
⑹His mother has devoted____ to the teaching of Home Economics.（she）
⑺The making paper was a Chinese____ . （invent）
⑻It is well ____  that Yangzhou is one of the most beautiful cities in our country.（know）
⑼He had been deeply affected by the____  death of his father. （suddenly）
⑽There will be ____  no rain tomorrow.（probable）

血液与组织细胞之间进行物质交换的场所是（　　）

Don't eat____ ____ ____ ____

某同学用伏安法测量导体的电阻，现有量程为3 V、内阻约为3 kΩ的电压表和量程为0.6 A、内阻约为0.1 Ω的电流表。采用分压电路接线，图1是实物的部分连线图，待测电阻为图2中的R₁，其阻值约为5 Ω。