Inject a little mercury (Hg) into a horizontal glass capillary tube. The two ends of the horizontal mercury column are convex. If heating the right convex of mercury, the mercury in the capillary will move ( ). A: to the left B: to the right C: to both ends D: no

Given: function[img=34x25]17de81e321f7032.png[/img] has a second-order derivative within the interval of [img=8x19]17de81e32caa1a1.png[/img], and . Then, within the interval of , the curve is: A: increasing and convex upward B: decreasing and convex upward C: increasing and convex downward D: decreasing and convex downward

Mooncakes are created in handmade wooden molds that give them traditional shape. The convex patterns on mooncake are colorful, both in terms of art and cultural .

Unity3D游戏引擎中，BoxCollider盒子碰撞器组件上不可以设置？ A: Size B: Convex C: Material D: IsTrigger

鉴别信息D(p || q)关于概率分布对(p, q)是 A: 下凸的（convex） B: 上凸的（concave）

以下哪些是这学期会cover到的主要学习内容？ A: Regression B: Classification C: Learning Theory D: Convex Optimization

The gel formed by methyl cellulose and gelatin can form a gel at a high temperature or a low temperature and is in the form of a solution at a medium temperature, which is called. A: concave gel B: convex gel C: hot gel D: cold gel

What is the wrong claim? A: A local minimizer is also a global minimizer for convex optimization B: An isolated local minimizer is also a strict local minimizerAn isolated local minimizer is also a strict local minimizer C: A global minimizer is also a local minimizer for unconstraint optimizationA global minimizer is also a local minimizer for unconstraint optimization D: A strict local minimizer is also an isolated local minimizer

Which of the following is the incorrect description of malignant ulcers? A: In posteroanterior view, the niche is round or unrepresentative round, surrounded by convex curves B: Relatively large cancerous ulcer with shallow depth C: In posteroanterior view, the contour of the niche is outwards, surrounded by concave curves D: Large areas of mucosal folds around the ulcer are destroyed and disappeared E: Mucosal folds are concentrated towards the niches, and they are interrupted halfway before they arrive