Survive on an Isolated Island, Awaken the Dual Base System at the Beginning

[The new book has just been released, feel free to taste it, the ratings are coming up, there is a process, enjoy the feast first] "Ding - it is detected that the host is on the verge of survival crisis, and the sign-in system is activated urgently." Zhang Yang was stunned for a moment. He looked around subconsciously, but there was no one there. "Today's sign-in is ready. Do you want to sign in?" This is a time-travel story about wasteland survival and island construction. The only difference is that our protagonist Zhang Yang has more sign-in and critical attack systems than others. Let's see how the hidden dragon emerges from the abyss! ! !