The present invention relates to a method for the in vitro diagnosis of colorectal cancer by determining the presence of the Apolipoprotein AII tumor marker in a biological sample taken from a patient suspected of having colorectal cancer. All steps are completed continuously in a vacuum without abrasion. The lower slide portion has an outer periphery provided with guide grooves, each of which comprises a helical rotary groove and a straight groove, peripherally in plural number. The light units are connected in a side-by-side fashion and can be separated to shorten the length of the light strip if so desired. The process is particularly applicable when the synthesis gas is used to prepare a synfuel by methanol synthesis or a Fischer-Tropsch process. The method mainly includes detecting, by a mobile terminal of a user by using a wireless network, that a distance between the mobile terminal and a set position is greater than a set value and reminding, by the mobile terminal, the user of a set event according to a set reminding manner.