what does the sentence below mean? "When all the questions are worth the same number of marks, you should check that you spend the right amount of time on them." i understand "you should check that you spend the right amount of time on them" but i confuse about "number of marks" and "all the questions are worth the same number of marks". Thanks.

My Employment +, Drew map from pdf file using core graphics iOS framework, base on the apple map framework. +, Implemented searching from one place to another place or current position, using Dijkstra algorithm. +, Implemented voice over internet protocol function by using Asterisk on iOS. +, Built a real-time chat system based on eJabberd. +, Implemented chat module, including text, emoticon, image, record on iOS. +, Integrated image filters using openCV and implemented image processing like crop, rotate, focus, blur on iOS. +, Blocked unwanted messages and phones on jailbreak iPhone by using hook and reserve technique. +, Implemented contact backup and restore, lock device or make a sound via message. +, Analyzed and wrote code to detect and remove some kind of malware, trojans, virus. +, Top 5 in class, out of over 200.

it's marked incorrectly or it's marked incorrect. Which sentence is wrong? and Why?

"Go along the main path as far as the canteen". What does "as far as" mean in this sentence ?

what does "i'm holding up your trade" mean?

untitled. 1. i have been working here for 6 months. 2. how many days holiday do you get a year? 3. i just have a bad cough. 4. are you home now? 5. my lamp is out of order.