Android SDK中，项目开发相关API放在哪个目录？ A: build-tools B: platforms C: docs D: tools

Stone tools began to be replaced around 6,000 years ago by metal tools, who were used to build instruments and simple machines.（） A: began B: who C: to build D: simple

With metal tools, the Mayans were able to build high temples and made various works of art.

With tools made of______, the Mayans were able to build high temples and made various works of art.

Android Studio中采用（ ）来构建项目。 A: Build Tools B: Android虚拟机 C: Gradle D: Android SDK

The advantages of commercial HIL tools include (): A: Easy to build models. B: Cheap C: Synchronize with the real machine. D: Hard to use.

Android Studio使用了很多组件，其中（ ）是用来构建项目工程的。 A: Gradle B: Android虚拟机 C: Build Tools D: Android SDK

About one million people_________the wall. A: were made to build B: was made to build C: is made to build D: are made to build

If he ______ enough money , he ______ a science lab . A: will have ; will build B: have ;will build C: has ;will build D: has ;build

The more confidence you ________ in yourself, the greater your chances of success are. A: build on B: build up C: build in D: build out of