汽车车身壳体按受力分类为（）、（）和（）。

某企业“原材料”账户期初借方余额为120000，本期“原材料”账户的借方发生额为50000元，贷方发生额为80000元，则“原材料”账户的期末余额为 ( )。

A．贷方100000元

B．贷方140000元

C．借方140000元

D．借方90000元

公文管理自动化基本上可分为单机方式和______方式两种。

女性，40岁，农民。因月经过多，妇科检查为子宫肌瘤，拟行手术切除，手术前因贫血输血400ml，10天后病人寒战、高热、头痛、大汗，热退后好转，隔天发作1次，血涂片找到疟原虫，12岁时曾患过疟疾。

此患者为哪一种情况的疟疾（）

A.新感染间日疟

B.复发

C.再燃

D.带虫者

E.输血后疟疾

A certain type of shrimp habitually hovers around superheated deep-sea geysers, near which the bacteria that form the shrimps diet can be found. Because the geysers emit a faint light, scientists have concluded that the shrimps’ light sensitive dorsal patches were developed to locate the geysers and thereby find food.
Which of the following, if true, casts the most doubt on the scientists’ conclusion

A．The light to which the shrimps are sensitive is not the sort of light that the geysers emit.

B．The light given off by the geysers too faint to be detected by the human eye.

C．The heat inside a geyser’s stream is sufficient to kill instantly any bacteria that move into it.

D．Most other types of shrimp use eyes located at the end of eyestalks in order to see.

E．(E) In other types of shrimp a heat-sensing organ has developed that could serve the same geyser-detecting purposes as the light sensitive patches are said to serve.

办理出境查验换证时，必须提交“出境货物检验检疫换证凭单”正本及正本复印件。 ( )