The pilot of a small aircraft with a 40-gallon fuel tank wants to fly to Cleveland, which is 480 miles away. The pilot recognizes that the current engine, which can fly only 8 miles per gallon, will not get him there. By how many miles per gallon must the aircraft’s fuel efficiency be improved to make the flight to Cleveland possible?

[单选题]妊娠月份已足，腹痛或作或止，腰不痛者.称为（　　）。

[问答题]有财务杠杆的股东自由现金流如何计算？

[问答题]简述秘书知识结构的主要内容。

[单选题]下列不能降低产品包装成本的是（）。

[单选题]世界上地质年代最年轻的大洋是哪个？（）

[问答题]如何检查可携式甚高频无线电话装置？

[问答题]使用氟利昂检漏灯检漏时应注意哪些事项？

[单选题]下列哪项不是中高位脊麻引起（）

[单选题]粉尘的分散度是指（）。

[单选题]男婴，足月产钳助产分娩，出生Apgar评分1分钟3分，5分钟8分。生后2天，嗜睡，时有惊厥，瞳孔缩小，肌张力低，头颅CT扫描，右侧额叶有低密度影。该病儿的支持治疗下列不妥的（）

非专业可以考出版资格证书吗？有哪些报考条件？

关于BEC考试有哪些备考建议？

为什么要考BEC？

有哪些学习商务英语的好方法？

商务英语考试（BEC）难不难？

都说GRE考试难，那么它究竟难在哪？

什么是GRE考试？

雅思考试在即，如何快速备考？

说说雅思考试那些事

雅思5.5相当于CET几级的水平？

[单选题]The pilot of a small aircraft with a 40-gallon fuel tank wants to fly to Clevela...

[问答题]

[单选题]（）is a/an aircraft used in SAR.

[单选题]The aircraft vanished without（）

[单选题]The pilot boat took the pilot （）the ship.

[单选题]Dassault constructs and sells aircraft.

[单选题]People are more likely to survive fires in the aircraft if they ______.

[单选题]When a pilot is on board to pilot the vessel the Letter （） must be hoisted．

[单选题]When a pilot is on board to pilot the vessel the Letter（）must be hoisted.

[单选题]The pilot motor launches are （） blue，with the PILOT in white．