In a diesel engine,（） works as working med

After its (1) to the (2) in 2001, China has taken steps towards opening up its (3) . As a condition for joining the WTO, China (4) itself to a (5) of trade liberalization, including the reduction of tariffs on cars and agricultural products. These tariffs reductions are both (6) and there is (7) for China to (8) at a faster pace.
A (9) of (10) and a more rapid and profound reduction of import tariffs would (11) of those Chinese consumers who would (12) imported products at lower prices. Second, a higher (13) into China would take away much upward pressure on the Renminbi and provide a true and lasting (14) to solving current global (15) . Indeed, even a modest (16) in the opening-up process would go a long way towards solving the problem.
The opening up of China’s markets to international competition should (17) deep reforms. Banks should be recapitalized, bad loans provisioned fully and state-owned companies’ runaway indebtedness (18) . Only when real progress in these areas is made should China begin to consider a reform to its (19) . Doing it any earlier would be highly (20) .

在Rt△ABC中，∠ACB=90°，CD⊥AB于点D，已知AC=4，BC=3，那么sin∠ACD=（    ）°。

关于日本赠与税的说法，错误的是( )。

A．赠与税的纳税人是接受赠与而得到财产的受赠人

B．赠与税的征税对象为纳税人得到的赠与财产

C．作为遗产税补充，日本赠与税的税率较高

D．当纳税人得到的赠与财产属于国外财产时，应按日本税法计算得出的应纳赠与税额全额纳税

ARDS共同性病理变化有（）。

A.气道阻塞

B.肺部感染

C.肺不张

D.急性心力衰竭

E.肺血管内皮和肺泡损害，肺间质水肿

泡沫灭火器适用于扑救油类以及木材和电气等的小型火灾。