exercise.md

## 问题描述

使用scroll-view组件想要实现滚动到右边150px触发scrolltolower事件，同时调用loadMore方法时，应选择下列哪个选项？

## 答案

``` html
<scroll-view scroll-x lower-threshold="150" @scrolltolower="loadMore"></scroll-view>
```

## 选项

### A

``` html
<scroll-view scroll-x lower-threshold="150"></scroll-view>
```

### B

``` html
<scroll-view scroll-x lower-threshold="50" @scrolltolower="loadMore"></scroll-view>
```

### C

``` html
<scroll-view scroll-x lower-threshold="100" @scrolltolower="loadMore"></scroll-view>
```

### D

``` html
<scroll-view scroll-x lower-threshold="500" @scrolltolower="loadMore"></scroll-view>
```